Home / 5,272.60-7,276.98-3,177.88

Finding the Fourth Proportional to 5,272.60, 7,276.98 and 3,177.88

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Solution

The fourth proportional to 5,272.60, 7,276.98 and 3,177.88 is: 4,385.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,272.60 : 7,276.98 = 3,177.88 : x
  2. Step 2: Convert to fraction form
    5,272.60/7,276.98 = 3,177.88/x
  3. Step 3: Cross multiply
    5,272.60x = 7,276.98 × 3,177.88
  4. Step 4: Simplify right side
    5,272.60x = 23,125,369.20
  5. Step 5: Solve for x
    x = 23,125,369.20/5,272.60
  6. Step 6: Final answer
    x = 4,385.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.