Solving Proportions 3 Methods
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- เผยแพร่เมื่อ 2 ต.ค. 2024
- Learn how to solve proportions using 3 different methods in this free math video tutorial by Mario's Math Tutoring.
0:14 What is a Proportion?
0:55 Method 1 Example 1 4/7 = x/21
1:25 How to Check Your Answer
1:40 Method 1 Example 2 9/x = 1/4
2:12 Method 1 Example 3 x/30 = 7/6
2:42 Method 2 Example 1 9/4 = x/7
3:21 Method 2 Example 2 x/2 = 5/8
3:55 Method 2 Example 3 4/x = 20/12
4:06 Property of Proportions - Taking the Reciprocal of Both Sides
5:20 Method 3 Example 1 Cross Product Method x/8 = 3/10
6:27 Method 3 Example 2 2/x = 3/14
6:50 Method 3 Example 3 10/3 = 9/x
Related Videos:
Properties of Proportions
• Properties of Proportions
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• Percent Proportion - H...
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Who’s here cuz of the Coronavirus and u have to do hw online smh 🤦🏽♂️
me
me omfg
Luis Sanchez me🥱
My teacher didn't send me this, but the video she sent me was so bad, and so sloppy, I had to do research because I forgot.I'll probably send her this link. Yw for sharing.
me😭
who's learning this in the 7 grade to.
Lol I am I forgot to do my home work and in like an hour is my math class and I don’t want my teacher to think I’m stupid
Erick Morales me :(
I’m learning this in 6th 😡
I am learning 6th
8th grade
great this guy is good he doesn't murmur for 30 minutes he gets straight to the point unlike other youtubers
lol he teaches me better in 8 minutes than my actual algebra teacher
@@P72962 same!
Im gonna switch solution in every question to confuse my teacher
I got an exam in the morning finna try this
@@papavproductions2284 same
@@papavproductions2284 how did it go?
@@jasiantheasian8894 got a 73%
Lol
this deserve many more views thanks for the help
Thanks Elizabeth! Glad my video helped you!
The teacher has 45 minutes to teach me this and she goes to fast for me to keep notes, you just taught me 3 methods in 7 minutes, thank you kind sir
I literally have a test on this tmrw and I didn’t know anything.... online school am I right?
I think we all did this is with in-person school too
today we learned this in class and you have brought my grade up. I appreciate your work sir and hope you continue. I use your videos whenever I need help.
Glad my solving proportions video helped you Gianna!
@@MariosMathTutoring i dont think it did
@@flerex9867 she literally said it did? I don't get it
only if all teachers went this slow and actually explained it
Deadass
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i forgot how to do it when i received summer homework this really helped thank you.
You’re welcome Angelic!
thank you so much i am in the 6th grade and we are learning this and i didnt really get it not that i watched your video and how you explain things is phenomenal keep up the good work
You’re welcome Norr! Glad you like my teaching style and glad my video helped you!
thanks so much man, im trying to get my GED and this is really helping me!
im distracted by this mans very cool accent
That's how it's pronounced
Hey! I’m so glad I found your classy. I’m going back to school after 12 years of being out and I’m attempting my assessment for math and English in college. I was stuck on this part of my study material and you helped me to understand
Weeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee!!!!!!!!!!!!
Love your videos! You’ve helped me understand so many decently complex topics!
Thank you so much!
Why is watching TH-cam videos more helpful then in person?🧐
Thank you it's more easier
Glad my video helped make proportions easier for you LEO!
This helped me and the third method is easy for me
Awesome Eduardo! Glad my video helped you!
Thank you for the help I'd fail if i didnt have this video
You’re welcome Kacie!
This video was the best I was so confused at first I had 30% understanding but he help bring it up to 100% Thank You:) !
You’re welcome Naika!
whos here because you need to study for a test you didnt know how to do
thank u so much i wish this vid helps me in our test
On method two don’t you have to divide 63 and 4 again
Good Quesstion...you can leave it as an improper fraction as I did in the video or your could write it as a mixed number 15 3/4 or you could write it as a decimal 15.75. Hope that helps!
i feel like im the only one learning in 5th grade ;-;
Thank u ! 😊 ❤ I will sub BC u helped me and maybe in the future u can help me more in other problems !
I'm in 6th grade 😀
Thx for helping , if my teacher helps me for 5 years I’ll still not understand but if u be my teacher and help me for 1.25 sec I’ll understand the whole math 😂 no cap
so far Iunder stand .It is hard it is bad
Thanks so much this helped a lot-- during lockdown and quarantine, I didn't learn much since most kids at my old school were underprivileged so they didn't have access to computers, so there was no online school whatsoever. However, I moved away from there (my dad is an Army officer), and my new teacher suggested this video and some from Math Antics to help me out-- thanks again!
who learning this in 6th grade
DUDE you just saved my life. I've gone through so many videos and my textbook videos and you blew my mind in two seconds. Thank you so much.
Thanks for the help I have a math final exam tmrw and this helped me alot
Glad it helped!
Thank you for making this video, I’m behind my class because of moving schools and your video helped me on the first part of the unit my teacher is teaching
you are awsom but I don't know what you mean when on the first one when you got three
Lmao thanks, my teacher doesn’t do anything to help teach us.
Not gonna lie but method #1 is the easiest for me
Great!
I didn't understand what my teacher told me about these but you just helped me understand it 100000 times better THANK YOU!!!
But my proportions we’re doing has x-2/4 = 2/5
Can you give me just a quick explanation on how to solve it?
Since it's subtracting, write (x-2) on TOP and keep the denominator the SAME. To solve for x you have to get both sides to the COMMON denominator...to do that, put large quotations around EVERYTHING on both sides, multiply numerator (top numbers) AND denominator (bottom numbers) by 4 or 5 until they both match up at 20. 20 is the least common denominator when you work your way up.
(5x-10/20) =(8/20) now solving for x will be all about getting x by itself so do the standard balancing equation technique. Multiply both sides by 20 to cancel (or zero out) the fractions...next, ADD on both sides to cancel the negative number next to x, and last but not least, DIVIDE the remaining number that is touching x by what should be 100...and do it on both sides as usual. Now you have x= 3.6 ..visual help below.
20 (5x-10/20) =20 (8/20)
AKA 20*5x= 100x...20*(-10) =-200...and 20 times the fraction of itself reduces it to 1 which is invisible now.
=[100x-200] is now on the left...
On the right you have...
20*8=160 and again, 20 multiplied by denominator of 20 canceled the denominator to a 1.
[160] is alone now solve for x....
"100x-200=160"
ADD 200 to both sides. Makes 100x=360...
Next DIVIDE both sides by 100..
X=360/100 ...just move the decimal to the left 2 times on 100 and 360.
X= 3.60/1.00 SO IT IS X=3.6
CORRECT ME IF I'M WRONG THOUGH! 😁
Sorry my explanation is not short. I just wanted to make sure I showed all the steps I took because I don't know where you're getting lost. I had excellent teachers in my high school but I am here for review because I haven't been in school for 10 years. I still remember all the basics but I'm having issues with cross multiplication of whole fractions against decimals and percentages. And converting worded problems like probability into equations...It's like I've had a really long summer LOL 10 years no school and this stuff has really not been used at all!
@pieceofshit lol
Thx I am in 6th grade you really saved me
Glad my video helped you Laurel!
Can you apply this to a rectangle and solve for x ? The Dimension in ft. is 3.972 by 19.472 what is the changed dimension (x) if 19.472 changes to 24.0?
Please write out the formula for doing this. Thank you in advance!
Thanks my teacher taught me method 3 proportions a year ago but I forgot all about it and I got a test this week with proportions on it
Quick question method 3, ?1 can the answer also be 2.4.
Also why does cross multiplication work in method 3. Finally an extension could have been substitution of the answer to check if correct.
Thanks
I just wanted to say THANK YOU! I dropped out at 18 because i was behind and didn't get the help. I am now almost 31 and back in school and i have been relying on youtube videos when i don't understand.
You're better than my teacher! I rlly wish I could applaud. If I could, I would give $50
Edit: You just earned yourself a new subscriber!
I love how everyone loves to badmouth their teachers on here. Watching a video is completely different. You are seeking the method that works for you and your in the comfort of your home or wherever. Bottom line is you are in control. If you don’t like this video you can go find another. Teachers have a job where they have to teach 30 kids a way of solving a problem usually in 50 minutes or 1 hour. That’s our challenge.
Do u have a video on using proportions with decimals. Because I’m doing homework and it’s confusing but it’s not just whole numbers it’s also using decimals
I don’t get why decimals were being moved for the method 3 part(c) but not for part (a)
And just to confirm the answer to 3c is 2 7/10
Tysm! ❤ I was absent this day and couldn’t get a lesson T^T I was soooo confused
OMG this video help me well tommorow is my math test as grade 6 learner and its already the second quarter from my school and the only test I can pass with a high grade. I need to pass so that my report card wont be having a 80 and below percent. Thank you
tnx
You're the best
I'm a 7th grader who passed his classes and is on a virtual class
why am I even here?
I have a question so I tried method 1 and my known numbers are 14. 2:3 and I got the answer 21 I just wanna make sure it's correct and I'm grade 5
Thank you for helping I love you
Glad you like my videos!
needs better explanation of what you're doing rather than just circling stuff and writing down numbers
If i had a teacher i would have passed all the exam and i You are very good and i liked the way of you teaching . Love from India🇮🇳
𝐖𝐨𝐰 hes good at teaching but im stupid i cant get it cuz im making art not our project or homework i just draw and idk im stupid lol
Okay so now I know that it doesn't which side the variable goes, as long as you multiply it and make it a fraction.
My stupid book has 3 fraction each rather than 2 fractions only
New subscriber,very helpful information
You just showed me an easier way to do the same thing thank you so much
You teach more understandable than my teacher👏🏻👏🏻👏🏻👍🏻
Wait what if both of my numerators aren’t eqauvalient then how do I get a number to multiply it to?!?
My school hires the worse math teachers and I haven’t had a good teacher in 4 years so I have decided to just teach myself if they won’t teach me.
But how do u set the things up like proportions cause I could put them however and get a complete different answer
You are so intelligent and great
Glad you like my videos Ashok!
method 2 made my brain experience technical difficulties 🤖🤛
The first and second one omg i didn't get it the last one was the easiest If anyone agrees with me ༼ つ ◕_◕ ༽つ
What if there is mare than one variable, for ex. X-4/6=x+2/12 ?
i am in 11th grade and im struggling in review 😐 last year all we did was trigonometry and i have no idea how to do this
Jeff Bezos's twin brother teaches incredible math.
Are you reading the comments instead of paying attention..?🤣
GRE Prep anyone? I think I was better prepared for this test in HS haha
This helped I don't fully understand but I'll get there eventually
Really nice video even though Im at the top of my math class I still use these videos.
this was so helpful i have a math test tomorrow and i dont think ill fail anymore
hey mr.mario! that cross reducing you did on method #2, problem C has me a bit confused. is there anyway we could talk about that for a min? It happened so, I can't seem to understand why were cross reducing. almost like i need to understand what the answer is when it's done like the previous problems. I feel like you went from beginner technique to advance shortcut, and for some reason that's where my mind loses focus you know. so i'm not sure what's happening and why its happening on that problem.
i think i still understand the method that is demonstrated in A and B. The fraction is still being multiplied across and the least common denominator is being applied, or reduced right? I'm losing comprehension when I think about that diagonal cross reducing.
I tried using the other methods on each other questions and it’s not working
Just slow it down. I'm trying to comprehend
I have a test on this and if this guy saved me last time, he sure can save me now.
Because it will not happen until you have done the wrong math
Thank you. I found the cross multiplication to be confusing, and doing it the other two methods (method #1 & #2) to be much easier for me.
Glad it helped!
I wish you were my teacher! Wish me luck on my test tommorow!
pov: you didnt pay attention in geometry and was assigned hw
When youtube teaches you more than you learn in 8 hours of school
Omg ty I have a test today and I did not know what to do and I was gonna fail
Thank you so so much for explaining this
what would you do when there are multiple variables
Method 3 in letter a is 12/5 right ??? Why 2/5 ????
woww amzing explanation thanks bro
I just learned Abt this channel and my games have been doing not so great in math but your definitely going to help me get through the year with algebra thank you so so much
Awesome! Glad to hear you found out about my channel! How’d you find out?
Very very thank you sir explain
Glad you liked the video Babusing!
i have watched 3 videos and this finally clicked now
Watching this before my math class 🙃✌
Your good name and home country please
i've been trying to do this for a while and have been struggling. while you were doing the third solution something clicked in my brain and i realize how to do these now... thanks!!!
Man I hate math, every single aspect of it.
what if one of the fractions is a negative?