Home / 5,972.78-8,942.97-4,121.66

Finding the Fourth Proportional to 5,972.78, 8,942.97 and 4,121.66

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Solution

The fourth proportional to 5,972.78, 8,942.97 and 4,121.66 is: 6,171.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,972.78 : 8,942.97 = 4,121.66 : x
  2. Step 2: Convert to fraction form
    5,972.78/8,942.97 = 4,121.66/x
  3. Step 3: Cross multiply
    5,972.78x = 8,942.97 × 4,121.66
  4. Step 4: Simplify right side
    5,972.78x = 36,859,881.73
  5. Step 5: Solve for x
    x = 36,859,881.73/5,972.78
  6. Step 6: Final answer
    x = 6,171.31

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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.