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Finding the Fourth Proportional to 10,600.08, 15,901.20 and 2,808.90

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Solution

The fourth proportional to 10,600.08, 15,901.20 and 2,808.90 is: 4,213.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,600.08 : 15,901.20 = 2,808.90 : x
  2. Step 2: Convert to fraction form
    10,600.08/15,901.20 = 2,808.90/x
  3. Step 3: Cross multiply
    10,600.08x = 15,901.20 × 2,808.90
  4. Step 4: Simplify right side
    10,600.08x = 44,664,880.68
  5. Step 5: Solve for x
    x = 44,664,880.68/10,600.08
  6. Step 6: Final answer
    x = 4,213.64

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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.