Home / 3,964.28-5,946.68-1,331.68

Finding the Fourth Proportional to 3,964.28, 5,946.68 and 1,331.68

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Solution

The fourth proportional to 3,964.28, 5,946.68 and 1,331.68 is: 1,997.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,964.28 : 5,946.68 = 1,331.68 : x
  2. Step 2: Convert to fraction form
    3,964.28/5,946.68 = 1,331.68/x
  3. Step 3: Cross multiply
    3,964.28x = 5,946.68 × 1,331.68
  4. Step 4: Simplify right side
    3,964.28x = 7,919,074.82
  5. Step 5: Solve for x
    x = 7,919,074.82/3,964.28
  6. Step 6: Final answer
    x = 1,997.61

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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.