Home / 3,943.41-5,439.87-2,450.76

Finding the Fourth Proportional to 3,943.41, 5,439.87 and 2,450.76

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Solution

The fourth proportional to 3,943.41, 5,439.87 and 2,450.76 is: 3,380.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,943.41 : 5,439.87 = 2,450.76 : x
  2. Step 2: Convert to fraction form
    3,943.41/5,439.87 = 2,450.76/x
  3. Step 3: Cross multiply
    3,943.41x = 5,439.87 × 2,450.76
  4. Step 4: Simplify right side
    3,943.41x = 13,331,815.80
  5. Step 5: Solve for x
    x = 13,331,815.80/3,943.41
  6. Step 6: Final answer
    x = 3,380.78

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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.