Home / 3,865.28-5,337.96-2,919.52

Finding the Fourth Proportional to 3,865.28, 5,337.96 and 2,919.52

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Solution

The fourth proportional to 3,865.28, 5,337.96 and 2,919.52 is: 4,031.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,865.28 : 5,337.96 = 2,919.52 : x
  2. Step 2: Convert to fraction form
    3,865.28/5,337.96 = 2,919.52/x
  3. Step 3: Cross multiply
    3,865.28x = 5,337.96 × 2,919.52
  4. Step 4: Simplify right side
    3,865.28x = 15,584,280.98
  5. Step 5: Solve for x
    x = 15,584,280.98/3,865.28
  6. Step 6: Final answer
    x = 4,031.86

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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.