Home / 3,913.97-5,401.25-2,321.71

Finding the Fourth Proportional to 3,913.97, 5,401.25 and 2,321.71

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Solution

The fourth proportional to 3,913.97, 5,401.25 and 2,321.71 is: 3,203.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,913.97 : 5,401.25 = 2,321.71 : x
  2. Step 2: Convert to fraction form
    3,913.97/5,401.25 = 2,321.71/x
  3. Step 3: Cross multiply
    3,913.97x = 5,401.25 × 2,321.71
  4. Step 4: Simplify right side
    3,913.97x = 12,540,128.44
  5. Step 5: Solve for x
    x = 12,540,128.44/3,913.97
  6. Step 6: Final answer
    x = 3,203.94

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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.