Home / 3,372.60-5,057.20-2,139.08

Finding the Fourth Proportional to 3,372.60, 5,057.20 and 2,139.08

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Solution

The fourth proportional to 3,372.60, 5,057.20 and 2,139.08 is: 3,207.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,372.60 : 5,057.20 = 2,139.08 : x
  2. Step 2: Convert to fraction form
    3,372.60/5,057.20 = 2,139.08/x
  3. Step 3: Cross multiply
    3,372.60x = 5,057.20 × 2,139.08
  4. Step 4: Simplify right side
    3,372.60x = 10,817,755.38
  5. Step 5: Solve for x
    x = 10,817,755.38/3,372.60
  6. Step 6: Final answer
    x = 3,207.54

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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.