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Finding the Fourth Proportional to 6,620.91, 9,926.91 and 3,497.64

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Solution

The fourth proportional to 6,620.91, 9,926.91 and 3,497.64 is: 5,244.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,620.91 : 9,926.91 = 3,497.64 : x
  2. Step 2: Convert to fraction form
    6,620.91/9,926.91 = 3,497.64/x
  3. Step 3: Cross multiply
    6,620.91x = 9,926.91 × 3,497.64
  4. Step 4: Simplify right side
    6,620.91x = 34,720,757.49
  5. Step 5: Solve for x
    x = 34,720,757.49/6,620.91
  6. Step 6: Final answer
    x = 5,244.11

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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.