Home / 3,942.06-5,912.25-1,861.17

Finding the Fourth Proportional to 3,942.06, 5,912.25 and 1,861.17

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Solution

The fourth proportional to 3,942.06, 5,912.25 and 1,861.17 is: 2,791.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,942.06 : 5,912.25 = 1,861.17 : x
  2. Step 2: Convert to fraction form
    3,942.06/5,912.25 = 1,861.17/x
  3. Step 3: Cross multiply
    3,942.06x = 5,912.25 × 1,861.17
  4. Step 4: Simplify right side
    3,942.06x = 11,003,702.33
  5. Step 5: Solve for x
    x = 11,003,702.33/3,942.06
  6. Step 6: Final answer
    x = 2,791.36

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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.