Home / 8,102.22-12,152.85-2,258.61

Finding the Fourth Proportional to 8,102.22, 12,152.85 and 2,258.61

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Solution

The fourth proportional to 8,102.22, 12,152.85 and 2,258.61 is: 3,387.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,102.22 : 12,152.85 = 2,258.61 : x
  2. Step 2: Convert to fraction form
    8,102.22/12,152.85 = 2,258.61/x
  3. Step 3: Cross multiply
    8,102.22x = 12,152.85 × 2,258.61
  4. Step 4: Simplify right side
    8,102.22x = 27,448,548.54
  5. Step 5: Solve for x
    x = 27,448,548.54/8,102.22
  6. Step 6: Final answer
    x = 3,387.78

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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.