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Finding the Fourth Proportional to 5,872.32, 8,808.50 and 1,489.78

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Solution

The fourth proportional to 5,872.32, 8,808.50 and 1,489.78 is: 2,234.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,872.32 : 8,808.50 = 1,489.78 : x
  2. Step 2: Convert to fraction form
    5,872.32/8,808.50 = 1,489.78/x
  3. Step 3: Cross multiply
    5,872.32x = 8,808.50 × 1,489.78
  4. Step 4: Simplify right side
    5,872.32x = 13,122,727.13
  5. Step 5: Solve for x
    x = 13,122,727.13/5,872.32
  6. Step 6: Final answer
    x = 2,234.68

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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.