3.15 is what percent of 3.51 - step by step solution

To get the solution, we are looking for, we need to point out what we know.

1. We assume, that the number 3.51 is 100% - because it's the output value of the task.
2. We assume, that x is the value we are looking for.
3. If 100% equals 3.51, so we can write it down as 100%=3.51.
4. We know, that x% equals 3.15 of the output value, so we can write it down as x%=3.15.
5. Now we have two simple equations:
1) 100%=3.51
2) x%=3.15
where left sides of both of them have the same units, and both right sides have the same units, so we can do something like that:
100%/x%=3.51/3.15
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for 3.15 is what percent of 3.51

100%/x%=3.51/3.15
(100/x)*x=(3.51/3.15)*x       - we multiply both sides of the equation by x
100=1.1142857142857*x       - we divide both sides of the equation by (1.1142857142857) to get x
100/1.1142857142857=x
89.74358974359=x
x=89.74358974359

now we have:
3.15 is 89.74358974359% of 3.51