Home / 3,910.22-5,865.33-1,961.96

Finding the Fourth Proportional to 3,910.22, 5,865.33 and 1,961.96

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Solution

The fourth proportional to 3,910.22, 5,865.33 and 1,961.96 is: 2,942.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,910.22 : 5,865.33 = 1,961.96 : x
  2. Step 2: Convert to fraction form
    3,910.22/5,865.33 = 1,961.96/x
  3. Step 3: Cross multiply
    3,910.22x = 5,865.33 × 1,961.96
  4. Step 4: Simplify right side
    3,910.22x = 11,507,542.85
  5. Step 5: Solve for x
    x = 11,507,542.85/3,910.22
  6. Step 6: Final answer
    x = 2,942.94

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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.