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Finding the Fourth Proportional to 8,610.08, 12,917.28 and 2,767.28

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Solution

The fourth proportional to 8,610.08, 12,917.28 and 2,767.28 is: 4,151.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,610.08 : 12,917.28 = 2,767.28 : x
  2. Step 2: Convert to fraction form
    8,610.08/12,917.28 = 2,767.28/x
  3. Step 3: Cross multiply
    8,610.08x = 12,917.28 × 2,767.28
  4. Step 4: Simplify right side
    8,610.08x = 35,745,730.60
  5. Step 5: Solve for x
    x = 35,745,730.60/8,610.08
  6. Step 6: Final answer
    x = 4,151.61

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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.