Home / 6,257.20-9,380.40-3,179.20

Finding the Fourth Proportional to 6,257.20, 9,380.40 and 3,179.20

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Solution

The fourth proportional to 6,257.20, 9,380.40 and 3,179.20 is: 4,766.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,257.20 : 9,380.40 = 3,179.20 : x
  2. Step 2: Convert to fraction form
    6,257.20/9,380.40 = 3,179.20/x
  3. Step 3: Cross multiply
    6,257.20x = 9,380.40 × 3,179.20
  4. Step 4: Simplify right side
    6,257.20x = 29,822,167.68
  5. Step 5: Solve for x
    x = 29,822,167.68/6,257.20
  6. Step 6: Final answer
    x = 4,766.06

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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.