Home / 3,942.87-5,441.19-2,174.43

Finding the Fourth Proportional to 3,942.87, 5,441.19 and 2,174.43

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Solution

The fourth proportional to 3,942.87, 5,441.19 and 2,174.43 is: 3,000.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,942.87 : 5,441.19 = 2,174.43 : x
  2. Step 2: Convert to fraction form
    3,942.87/5,441.19 = 2,174.43/x
  3. Step 3: Cross multiply
    3,942.87x = 5,441.19 × 2,174.43
  4. Step 4: Simplify right side
    3,942.87x = 11,831,486.77
  5. Step 5: Solve for x
    x = 11,831,486.77/3,942.87
  6. Step 6: Final answer
    x = 3,000.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.