Home / 3,972.43-5,959.20-1,340.69

Finding the Fourth Proportional to 3,972.43, 5,959.20 and 1,340.69

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Solution

The fourth proportional to 3,972.43, 5,959.20 and 1,340.69 is: 2,011.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,972.43 : 5,959.20 = 1,340.69 : x
  2. Step 2: Convert to fraction form
    3,972.43/5,959.20 = 1,340.69/x
  3. Step 3: Cross multiply
    3,972.43x = 5,959.20 × 1,340.69
  4. Step 4: Simplify right side
    3,972.43x = 7,989,439.85
  5. Step 5: Solve for x
    x = 7,989,439.85/3,972.43
  6. Step 6: Final answer
    x = 2,011.22

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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.