Home / 3,939.27-5,908.78-1,599.21

Finding the Fourth Proportional to 3,939.27, 5,908.78 and 1,599.21

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Solution

The fourth proportional to 3,939.27, 5,908.78 and 1,599.21 is: 2,398.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,939.27 : 5,908.78 = 1,599.21 : x
  2. Step 2: Convert to fraction form
    3,939.27/5,908.78 = 1,599.21/x
  3. Step 3: Cross multiply
    3,939.27x = 5,908.78 × 1,599.21
  4. Step 4: Simplify right side
    3,939.27x = 9,449,380.06
  5. Step 5: Solve for x
    x = 9,449,380.06/3,939.27
  6. Step 6: Final answer
    x = 2,398.76

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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.