Home / 3,869.10-5,335.92-3,122.82

Finding the Fourth Proportional to 3,869.10, 5,335.92 and 3,122.82

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Solution

The fourth proportional to 3,869.10, 5,335.92 and 3,122.82 is: 4,306.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,869.10 : 5,335.92 = 3,122.82 : x
  2. Step 2: Convert to fraction form
    3,869.10/5,335.92 = 3,122.82/x
  3. Step 3: Cross multiply
    3,869.10x = 5,335.92 × 3,122.82
  4. Step 4: Simplify right side
    3,869.10x = 16,663,117.69
  5. Step 5: Solve for x
    x = 16,663,117.69/3,869.10
  6. Step 6: Final answer
    x = 4,306.72

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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.