find the value of x in the proportion 2 1/2:x::3 1/2:4
Answers
Answered by
8
Answer:
20/7
Step-by-step explanation:
if a:b::c:d
then, b*c=a*d
Answered by
7
Step-by-step explanation:
Given proportion is 2 1/2 :x::3 1/2 :4
It can be written as 5/2:x:7/2:4
Product of extremes=(5/2)×4=5×2=10
Product of means=x×7/2=7x/2
We know that
In a proportion,
Product of means=Product of extremes
=>7x/2=10
=>7x=10×2
=>7x=20
=>x=20/7
=>x=2 6/7
The value of x=20/7 or 2 6/7
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