Home / 3,932.40-5,429.24-2,441.92

Finding the Fourth Proportional to 3,932.40, 5,429.24 and 2,441.92

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Solution

The fourth proportional to 3,932.40, 5,429.24 and 2,441.92 is: 3,371.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,932.40 : 5,429.24 = 2,441.92 : x
  2. Step 2: Convert to fraction form
    3,932.40/5,429.24 = 2,441.92/x
  3. Step 3: Cross multiply
    3,932.40x = 5,429.24 × 2,441.92
  4. Step 4: Simplify right side
    3,932.40x = 13,257,769.74
  5. Step 5: Solve for x
    x = 13,257,769.74/3,932.40
  6. Step 6: Final answer
    x = 3,371.42

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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.