85 is what percent of 2191 - 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 2191 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 2191, so we can write it down as 100%=2191.
4. We know, that x% equals 85 of the output value, so we can write it down as x%=85.
5. Now we have two simple equations:
1) 100%=2191
2) x%=85
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%=2191/85
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for 85 is what percent of 2191

100%/x%=2191/85
(100/x)*x=(2191/85)*x       - we multiply both sides of the equation by x
100=25.776470588235*x       - we divide both sides of the equation by (25.776470588235) to get x
100/25.776470588235=x
3.8795070743953=x
x=3.8795070743953

now we have:
85 is 3.8795070743953% of 2191