Home / 3,942.46-5,909.70-2,556.68

Finding the Fourth Proportional to 3,942.46, 5,909.70 and 2,556.68

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Solution

The fourth proportional to 3,942.46, 5,909.70 and 2,556.68 is: 3,832.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,942.46 : 5,909.70 = 2,556.68 : x
  2. Step 2: Convert to fraction form
    3,942.46/5,909.70 = 2,556.68/x
  3. Step 3: Cross multiply
    3,942.46x = 5,909.70 × 2,556.68
  4. Step 4: Simplify right side
    3,942.46x = 15,109,211.80
  5. Step 5: Solve for x
    x = 15,109,211.80/3,942.46
  6. Step 6: Final answer
    x = 3,832.43

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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.