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Finding the Fourth Proportional to 5,382.56, 8,073.88 and 1,487.00

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Solution

The fourth proportional to 5,382.56, 8,073.88 and 1,487.00 is: 2,230.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,382.56 : 8,073.88 = 1,487.00 : x
  2. Step 2: Convert to fraction form
    5,382.56/8,073.88 = 1,487.00/x
  3. Step 3: Cross multiply
    5,382.56x = 8,073.88 × 1,487.00
  4. Step 4: Simplify right side
    5,382.56x = 12,005,876.03
  5. Step 5: Solve for x
    x = 12,005,876.03/5,382.56
  6. Step 6: Final answer
    x = 2,230.51

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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.