Home / 3,942.54-5,912.09-2,093.21

Finding the Fourth Proportional to 3,942.54, 5,912.09 and 2,093.21

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Solution

The fourth proportional to 3,942.54, 5,912.09 and 2,093.21 is: 3,138.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,942.54 : 5,912.09 = 2,093.21 : x
  2. Step 2: Convert to fraction form
    3,942.54/5,912.09 = 2,093.21/x
  3. Step 3: Cross multiply
    3,942.54x = 5,912.09 × 2,093.21
  4. Step 4: Simplify right side
    3,942.54x = 12,375,235.90
  5. Step 5: Solve for x
    x = 12,375,235.90/3,942.54
  6. Step 6: Final answer
    x = 3,138.90

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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.