Home / 3,936.38-5,902.43-1,957.66

Finding the Fourth Proportional to 3,936.38, 5,902.43 and 1,957.66

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Solution

The fourth proportional to 3,936.38, 5,902.43 and 1,957.66 is: 2,935.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,936.38 : 5,902.43 = 1,957.66 : x
  2. Step 2: Convert to fraction form
    3,936.38/5,902.43 = 1,957.66/x
  3. Step 3: Cross multiply
    3,936.38x = 5,902.43 × 1,957.66
  4. Step 4: Simplify right side
    3,936.38x = 11,554,926.57
  5. Step 5: Solve for x
    x = 11,554,926.57/3,936.38
  6. Step 6: Final answer
    x = 2,935.42

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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.