Home / 3,942.45-5,917.29-1,996.02

Finding the Fourth Proportional to 3,942.45, 5,917.29 and 1,996.02

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Solution

The fourth proportional to 3,942.45, 5,917.29 and 1,996.02 is: 2,995.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,942.45 : 5,917.29 = 1,996.02 : x
  2. Step 2: Convert to fraction form
    3,942.45/5,917.29 = 1,996.02/x
  3. Step 3: Cross multiply
    3,942.45x = 5,917.29 × 1,996.02
  4. Step 4: Simplify right side
    3,942.45x = 11,811,029.19
  5. Step 5: Solve for x
    x = 11,811,029.19/3,942.45
  6. Step 6: Final answer
    x = 2,995.86

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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.