Home / 7,957.89-11,936.82-2,114.55

Finding the Fourth Proportional to 7,957.89, 11,936.82 and 2,114.55

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Solution

The fourth proportional to 7,957.89, 11,936.82 and 2,114.55 is: 3,171.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,957.89 : 11,936.82 = 2,114.55 : x
  2. Step 2: Convert to fraction form
    7,957.89/11,936.82 = 2,114.55/x
  3. Step 3: Cross multiply
    7,957.89x = 11,936.82 × 2,114.55
  4. Step 4: Simplify right side
    7,957.89x = 25,241,002.73
  5. Step 5: Solve for x
    x = 25,241,002.73/7,957.89
  6. Step 6: Final answer
    x = 3,171.82

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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.