1/4:1/2=1:x solve for x in the following proportion. Carry division two decimal places as necessary. Help please?

2015-10-01 1:04 am
Please solve step by step so I can learn how to solve this.

回答 (3)

2015-10-01 1:33 am
You want the number on the left side of the proportion to be 1, so multiply by 4.
.. 1/4 : 1/2 = 4/4 : 4/2 = 1 : 2

x = 2
2015-10-01 1:23 am
Set up ratio equation
1/4 / 1/2 = 1/x
Multiply both sides by x
1/4x / 1/2 = 1
Multiply both sides by 1/2
1/4x = 1/2
Multiply both side by 4.
X = 1/2 * 4
X = 2
This makes sense since 1/2 is twice as much as 1/4.
2015-10-01 1:08 am
note : 1/2 is twice 1/4...thus x = 2


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