Home / 5,140.98-7,701.66-3,972.96

Finding the Fourth Proportional to 5,140.98, 7,701.66 and 3,972.96

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Solution

The fourth proportional to 5,140.98, 7,701.66 and 3,972.96 is: 5,951.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,140.98 : 7,701.66 = 3,972.96 : x
  2. Step 2: Convert to fraction form
    5,140.98/7,701.66 = 3,972.96/x
  3. Step 3: Cross multiply
    5,140.98x = 7,701.66 × 3,972.96
  4. Step 4: Simplify right side
    5,140.98x = 30,598,387.11
  5. Step 5: Solve for x
    x = 30,598,387.11/5,140.98
  6. Step 6: Final answer
    x = 5,951.86

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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.