Home / 3,913.17-5,400.11-2,144.79

Finding the Fourth Proportional to 3,913.17, 5,400.11 and 2,144.79

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Solution

The fourth proportional to 3,913.17, 5,400.11 and 2,144.79 is: 2,959.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,913.17 : 5,400.11 = 2,144.79 : x
  2. Step 2: Convert to fraction form
    3,913.17/5,400.11 = 2,144.79/x
  3. Step 3: Cross multiply
    3,913.17x = 5,400.11 × 2,144.79
  4. Step 4: Simplify right side
    3,913.17x = 11,582,091.20
  5. Step 5: Solve for x
    x = 11,582,091.20/3,913.17
  6. Step 6: Final answer
    x = 2,959.77

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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.