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Finding the Fourth Proportional to 8,979.41, 13,469.10 and 2,405.41

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Solution

The fourth proportional to 8,979.41, 13,469.10 and 2,405.41 is: 3,608.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,979.41 : 13,469.10 = 2,405.41 : x
  2. Step 2: Convert to fraction form
    8,979.41/13,469.10 = 2,405.41/x
  3. Step 3: Cross multiply
    8,979.41x = 13,469.10 × 2,405.41
  4. Step 4: Simplify right side
    8,979.41x = 32,398,754.43
  5. Step 5: Solve for x
    x = 32,398,754.43/8,979.41
  6. Step 6: Final answer
    x = 3,608.12

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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.