Finding the Fourth Proportional to 3,882,489.84, 5,357,841.12 and 2,163,572.64
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Solution
The fourth proportional to 3,882,489.84, 5,357,841.12 and 2,163,572.64 is: 2,985,733.11
Step by Step Solution
- Step 1: Write the proportion equation
3,882,489.84 : 5,357,841.12 = 2,163,572.64 : x - Step 2: Convert to fraction form
3,882,489.84/5,357,841.12 = 2,163,572.64/x - Step 3: Cross multiply
3,882,489.84x = 5,357,841.12 × 2,163,572.64 - Step 4: Simplify right side
3,882,489.84x = 11,592,078,456,698.96 - Step 5: Solve for x
x = 11,592,078,456,698.96/3,882,489.84 - Step 6: Final answer
x = 2,985,733.11
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.