Finding the Fourth Proportional to 7,317.77, 10,976.99 and 2,387.70
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Solution
The fourth proportional to 7,317.77, 10,976.99 and 2,387.70 is: 3,581.66
Step by Step Solution
- Step 1: Write the proportion equation
7,317.77 : 10,976.99 = 2,387.70 : x - Step 2: Convert to fraction form
7,317.77/10,976.99 = 2,387.70/x - Step 3: Cross multiply
7,317.77x = 10,976.99 × 2,387.70 - Step 4: Simplify right side
7,317.77x = 26,209,747.08 - Step 5: Solve for x
x = 26,209,747.08/7,317.77 - Step 6: Final answer
x = 3,581.66
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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.