Home / 3,279.67-4,919.49-1,331.87

Finding the Fourth Proportional to 3,279.67, 4,919.49 and 1,331.87

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Solution

The fourth proportional to 3,279.67, 4,919.49 and 1,331.87 is: 1,997.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,279.67 : 4,919.49 = 1,331.87 : x
  2. Step 2: Convert to fraction form
    3,279.67/4,919.49 = 1,331.87/x
  3. Step 3: Cross multiply
    3,279.67x = 4,919.49 × 1,331.87
  4. Step 4: Simplify right side
    3,279.67x = 6,552,096.55
  5. Step 5: Solve for x
    x = 6,552,096.55/3,279.67
  6. Step 6: Final answer
    x = 1,997.79

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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.