Finding the Fourth Proportional to 3,894,631.64, 5,374,608.02 and 2,128,565.48
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Solution
The fourth proportional to 3,894,631.64, 5,374,608.02 and 2,128,565.48 is: 2,937,429.30
Step by Step Solution
- Step 1: Write the proportion equation
3,894,631.64 : 5,374,608.02 = 2,128,565.48 : x - Step 2: Convert to fraction form
3,894,631.64/5,374,608.02 = 2,128,565.48/x - Step 3: Cross multiply
3,894,631.64x = 5,374,608.02 × 2,128,565.48 - Step 4: Simplify right side
3,894,631.64x = 11,440,205,062,387.28 - Step 5: Solve for x
x = 11,440,205,062,387.28/3,894,631.64 - Step 6: Final answer
x = 2,937,429.30
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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.