Home / 3,913.27-5,400.40-2,144.97

Finding the Fourth Proportional to 3,913.27, 5,400.40 and 2,144.97

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Solution

The fourth proportional to 3,913.27, 5,400.40 and 2,144.97 is: 2,960.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,913.27 : 5,400.40 = 2,144.97 : x
  2. Step 2: Convert to fraction form
    3,913.27/5,400.40 = 2,144.97/x
  3. Step 3: Cross multiply
    3,913.27x = 5,400.40 × 2,144.97
  4. Step 4: Simplify right side
    3,913.27x = 11,583,695.99
  5. Step 5: Solve for x
    x = 11,583,695.99/3,913.27
  6. Step 6: Final answer
    x = 2,960.11

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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.