Home / 3,424.28-5,131.68-1,960.36

Finding the Fourth Proportional to 3,424.28, 5,131.68 and 1,960.36

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Solution

The fourth proportional to 3,424.28, 5,131.68 and 1,960.36 is: 2,937.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,424.28 : 5,131.68 = 1,960.36 : x
  2. Step 2: Convert to fraction form
    3,424.28/5,131.68 = 1,960.36/x
  3. Step 3: Cross multiply
    3,424.28x = 5,131.68 × 1,960.36
  4. Step 4: Simplify right side
    3,424.28x = 10,059,940.20
  5. Step 5: Solve for x
    x = 10,059,940.20/3,424.28
  6. Step 6: Final answer
    x = 2,937.83

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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.