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Finding the Fourth Proportional to 8,901.92, 13,350.60 and 2,661.92

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Solution

The fourth proportional to 8,901.92, 13,350.60 and 2,661.92 is: 3,992.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,901.92 : 13,350.60 = 2,661.92 : x
  2. Step 2: Convert to fraction form
    8,901.92/13,350.60 = 2,661.92/x
  3. Step 3: Cross multiply
    8,901.92x = 13,350.60 × 2,661.92
  4. Step 4: Simplify right side
    8,901.92x = 35,538,229.15
  5. Step 5: Solve for x
    x = 35,538,229.15/8,901.92
  6. Step 6: Final answer
    x = 3,992.20

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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.