Question

a turbine engine produces 1,520 hp at 104%, what is the 100% rating of this engine? (2 decimals if needed)

Explanation:

Step1: Set up proportion

Let $x$ be the 100% rating. We know that 1520 hp is 104% of $x$. So the equation is $\frac{1520}{x}=\frac{104}{100}$.

Step2: Cross - multiply

$104x = 1520\times100$.

Step3: Solve for $x$

$x=\frac{1520\times100}{104}=\frac{152000}{104}\approx1461.54$.

Answer:

1461.54