Home / 7,489.60-11,234.82-3,787.48

Finding the Fourth Proportional to 7,489.60, 11,234.82 and 3,787.48

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Solution

The fourth proportional to 7,489.60, 11,234.82 and 3,787.48 is: 5,681.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,489.60 : 11,234.82 = 3,787.48 : x
  2. Step 2: Convert to fraction form
    7,489.60/11,234.82 = 3,787.48/x
  3. Step 3: Cross multiply
    7,489.60x = 11,234.82 × 3,787.48
  4. Step 4: Simplify right side
    7,489.60x = 42,551,656.05
  5. Step 5: Solve for x
    x = 42,551,656.05/7,489.60
  6. Step 6: Final answer
    x = 5,681.43

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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.