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Finding the Fourth Proportional to 5,872.97, 8,811.98 and 3,899.30

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Solution

The fourth proportional to 5,872.97, 8,811.98 and 3,899.30 is: 5,850.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,872.97 : 8,811.98 = 3,899.30 : x
  2. Step 2: Convert to fraction form
    5,872.97/8,811.98 = 3,899.30/x
  3. Step 3: Cross multiply
    5,872.97x = 8,811.98 × 3,899.30
  4. Step 4: Simplify right side
    5,872.97x = 34,360,490.06
  5. Step 5: Solve for x
    x = 34,360,490.06/5,872.97
  6. Step 6: Final answer
    x = 5,850.62

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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.