Home / 3,958.48-5,462.24-2,279.88

Finding the Fourth Proportional to 3,958.48, 5,462.24 and 2,279.88

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Solution

The fourth proportional to 3,958.48, 5,462.24 and 2,279.88 is: 3,145.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,958.48 : 5,462.24 = 2,279.88 : x
  2. Step 2: Convert to fraction form
    3,958.48/5,462.24 = 2,279.88/x
  3. Step 3: Cross multiply
    3,958.48x = 5,462.24 × 2,279.88
  4. Step 4: Simplify right side
    3,958.48x = 12,453,251.73
  5. Step 5: Solve for x
    x = 12,453,251.73/3,958.48
  6. Step 6: Final answer
    x = 3,145.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.