Home / 8,119.32-12,179.38-2,276.52

Finding the Fourth Proportional to 8,119.32, 12,179.38 and 2,276.52

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Solution

The fourth proportional to 8,119.32, 12,179.38 and 2,276.52 is: 3,414.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,119.32 : 12,179.38 = 2,276.52 : x
  2. Step 2: Convert to fraction form
    8,119.32/12,179.38 = 2,276.52/x
  3. Step 3: Cross multiply
    8,119.32x = 12,179.38 × 2,276.52
  4. Step 4: Simplify right side
    8,119.32x = 27,726,602.16
  5. Step 5: Solve for x
    x = 27,726,602.16/8,119.32
  6. Step 6: Final answer
    x = 3,414.89

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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.