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Finding the Fourth Proportional to 8,078.70, 12,118.05 and 2,234.82

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Solution

The fourth proportional to 8,078.70, 12,118.05 and 2,234.82 is: 3,352.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,078.70 : 12,118.05 = 2,234.82 : x
  2. Step 2: Convert to fraction form
    8,078.70/12,118.05 = 2,234.82/x
  3. Step 3: Cross multiply
    8,078.70x = 12,118.05 × 2,234.82
  4. Step 4: Simplify right side
    8,078.70x = 27,081,660.50
  5. Step 5: Solve for x
    x = 27,081,660.50/8,078.70
  6. Step 6: Final answer
    x = 3,352.23

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Similar ratio
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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.