Home / 3,380.40-5,062.68-2,923.20

Finding the Fourth Proportional to 3,380.40, 5,062.68 and 2,923.20

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Solution

The fourth proportional to 3,380.40, 5,062.68 and 2,923.20 is: 4,377.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,380.40 : 5,062.68 = 2,923.20 : x
  2. Step 2: Convert to fraction form
    3,380.40/5,062.68 = 2,923.20/x
  3. Step 3: Cross multiply
    3,380.40x = 5,062.68 × 2,923.20
  4. Step 4: Simplify right side
    3,380.40x = 14,799,226.18
  5. Step 5: Solve for x
    x = 14,799,226.18/3,380.40
  6. Step 6: Final answer
    x = 4,377.95

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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.