Finding the Fourth Proportional to 5,424, 8,136 and 3,691.68
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Solution
The fourth proportional to 5,424, 8,136 and 3,691.68 is: 5,537.52
Step by Step Solution
- Step 1: Write the proportion equation
5,424 : 8,136 = 3,691.68 : x - Step 2: Convert to fraction form
5,424/8,136 = 3,691.68/x - Step 3: Cross multiply
5,424x = 8,136 × 3,691.68 - Step 4: Simplify right side
5,424x = 30,035,508.48 - Step 5: Solve for x
x = 30,035,508.48/5,424 - Step 6: Final answer
x = 5,537.52
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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.