Finding the Fourth Proportional to 7,381.92, 11,070.99 and 2,186.58
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Solution
The fourth proportional to 7,381.92, 11,070.99 and 2,186.58 is: 3,279.31
Step by Step Solution
- Step 1: Write the proportion equation
7,381.92 : 11,070.99 = 2,186.58 : x - Step 2: Convert to fraction form
7,381.92/11,070.99 = 2,186.58/x - Step 3: Cross multiply
7,381.92x = 11,070.99 × 2,186.58 - Step 4: Simplify right side
7,381.92x = 24,207,605.31 - Step 5: Solve for x
x = 24,207,605.31/7,381.92 - Step 6: Final answer
x = 3,279.31
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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.