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Finding the Fourth Proportional to 6,658.38, 9,987.96 and 1,727.90

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Solution

The fourth proportional to 6,658.38, 9,987.96 and 1,727.90 is: 2,591.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,658.38 : 9,987.96 = 1,727.90 : x
  2. Step 2: Convert to fraction form
    6,658.38/9,987.96 = 1,727.90/x
  3. Step 3: Cross multiply
    6,658.38x = 9,987.96 × 1,727.90
  4. Step 4: Simplify right side
    6,658.38x = 17,258,146.14
  5. Step 5: Solve for x
    x = 17,258,146.14/6,658.38
  6. Step 6: Final answer
    x = 2,591.94

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1.5x scale

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.