Home / 3,149.66-4,348.12-2,439.92

Finding the Fourth Proportional to 3,149.66, 4,348.12 and 2,439.92

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Solution

The fourth proportional to 3,149.66, 4,348.12 and 2,439.92 is: 3,368.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,149.66 : 4,348.12 = 2,439.92 : x
  2. Step 2: Convert to fraction form
    3,149.66/4,348.12 = 2,439.92/x
  3. Step 3: Cross multiply
    3,149.66x = 4,348.12 × 2,439.92
  4. Step 4: Simplify right side
    3,149.66x = 10,609,064.95
  5. Step 5: Solve for x
    x = 10,609,064.95/3,149.66
  6. Step 6: Final answer
    x = 3,368.32

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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.