Home / 3,257.15-4,884.98-917.39

Finding the Fourth Proportional to 3,257.15, 4,884.98 and 917.39

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Solution

The fourth proportional to 3,257.15, 4,884.98 and 917.39 is: 1,375.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,257.15 : 4,884.98 = 917.39 : x
  2. Step 2: Convert to fraction form
    3,257.15/4,884.98 = 917.39/x
  3. Step 3: Cross multiply
    3,257.15x = 4,884.98 × 917.39
  4. Step 4: Simplify right side
    3,257.15x = 4,481,439.43
  5. Step 5: Solve for x
    x = 4,481,439.43/3,257.15
  6. Step 6: Final answer
    x = 1,375.88

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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.