Home / 3,928.52-5,424.84-2,932.04

Finding the Fourth Proportional to 3,928.52, 5,424.84 and 2,932.04

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Solution

The fourth proportional to 3,928.52, 5,424.84 and 2,932.04 is: 4,048.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,928.52 : 5,424.84 = 2,932.04 : x
  2. Step 2: Convert to fraction form
    3,928.52/5,424.84 = 2,932.04/x
  3. Step 3: Cross multiply
    3,928.52x = 5,424.84 × 2,932.04
  4. Step 4: Simplify right side
    3,928.52x = 15,905,820.75
  5. Step 5: Solve for x
    x = 15,905,820.75/3,928.52
  6. Step 6: Final answer
    x = 4,048.81

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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.