Home / 3,964.47-5,942.41-2,578.80

Finding the Fourth Proportional to 3,964.47, 5,942.41 and 2,578.80

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Solution

The fourth proportional to 3,964.47, 5,942.41 and 2,578.80 is: 3,865.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,964.47 : 5,942.41 = 2,578.80 : x
  2. Step 2: Convert to fraction form
    3,964.47/5,942.41 = 2,578.80/x
  3. Step 3: Cross multiply
    3,964.47x = 5,942.41 × 2,578.80
  4. Step 4: Simplify right side
    3,964.47x = 15,324,286.91
  5. Step 5: Solve for x
    x = 15,324,286.91/3,964.47
  6. Step 6: Final answer
    x = 3,865.41

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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.