Home / 5,383.28-8,073.84-3,429.68

Finding the Fourth Proportional to 5,383.28, 8,073.84 and 3,429.68

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Solution

The fourth proportional to 5,383.28, 8,073.84 and 3,429.68 is: 5,143.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,383.28 : 8,073.84 = 3,429.68 : x
  2. Step 2: Convert to fraction form
    5,383.28/8,073.84 = 3,429.68/x
  3. Step 3: Cross multiply
    5,383.28x = 8,073.84 × 3,429.68
  4. Step 4: Simplify right side
    5,383.28x = 27,690,687.57
  5. Step 5: Solve for x
    x = 27,690,687.57/5,383.28
  6. Step 6: Final answer
    x = 5,143.83

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1.5x scale

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.