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Finding the Fourth Proportional to 8,081.70, 12,122.55 and 2,237.82

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Solution

The fourth proportional to 8,081.70, 12,122.55 and 2,237.82 is: 3,356.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,081.70 : 12,122.55 = 2,237.82 : x
  2. Step 2: Convert to fraction form
    8,081.70/12,122.55 = 2,237.82/x
  3. Step 3: Cross multiply
    8,081.70x = 12,122.55 × 2,237.82
  4. Step 4: Simplify right side
    8,081.70x = 27,128,084.84
  5. Step 5: Solve for x
    x = 27,128,084.84/8,081.70
  6. Step 6: Final answer
    x = 3,356.73

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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.