Home / 3,939.92-5,908.52-1,342.24

Finding the Fourth Proportional to 3,939.92, 5,908.52 and 1,342.24

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Solution

The fourth proportional to 3,939.92, 5,908.52 and 1,342.24 is: 2,012.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,939.92 : 5,908.52 = 1,342.24 : x
  2. Step 2: Convert to fraction form
    3,939.92/5,908.52 = 1,342.24/x
  3. Step 3: Cross multiply
    3,939.92x = 5,908.52 × 1,342.24
  4. Step 4: Simplify right side
    3,939.92x = 7,930,651.88
  5. Step 5: Solve for x
    x = 7,930,651.88/3,939.92
  6. Step 6: Final answer
    x = 2,012.90

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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.