Home / 3,960.05-5,942.73-2,112.44

Finding the Fourth Proportional to 3,960.05, 5,942.73 and 2,112.44

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Solution

The fourth proportional to 3,960.05, 5,942.73 and 2,112.44 is: 3,170.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,960.05 : 5,942.73 = 2,112.44 : x
  2. Step 2: Convert to fraction form
    3,960.05/5,942.73 = 2,112.44/x
  3. Step 3: Cross multiply
    3,960.05x = 5,942.73 × 2,112.44
  4. Step 4: Simplify right side
    3,960.05x = 12,553,630.85
  5. Step 5: Solve for x
    x = 12,553,630.85/3,960.05
  6. Step 6: Final answer
    x = 3,170.07

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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.