Finding the Fourth Proportional to 7,585.99, 11,378.99 and 2,965.75
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Solution
The fourth proportional to 7,585.99, 11,378.99 and 2,965.75 is: 4,448.63
Step by Step Solution
- Step 1: Write the proportion equation
7,585.99 : 11,378.99 = 2,965.75 : x - Step 2: Convert to fraction form
7,585.99/11,378.99 = 2,965.75/x - Step 3: Cross multiply
7,585.99x = 11,378.99 × 2,965.75 - Step 4: Simplify right side
7,585.99x = 33,747,239.59 - Step 5: Solve for x
x = 33,747,239.59/7,585.99 - Step 6: Final answer
x = 4,448.63
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Double scale
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Similar ratio
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.