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Finding the Fourth Proportional to 6,657.52, 9,972.91 and 3,315.70

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Solution

The fourth proportional to 6,657.52, 9,972.91 and 3,315.70 is: 4,966.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,657.52 : 9,972.91 = 3,315.70 : x
  2. Step 2: Convert to fraction form
    6,657.52/9,972.91 = 3,315.70/x
  3. Step 3: Cross multiply
    6,657.52x = 9,972.91 × 3,315.70
  4. Step 4: Simplify right side
    6,657.52x = 33,067,177.69
  5. Step 5: Solve for x
    x = 33,067,177.69/6,657.52
  6. Step 6: Final answer
    x = 4,966.89

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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.