Home / 3,257.07-4,885.55-791.87

Finding the Fourth Proportional to 3,257.07, 4,885.55 and 791.87

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Solution

The fourth proportional to 3,257.07, 4,885.55 and 791.87 is: 1,187.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,257.07 : 4,885.55 = 791.87 : x
  2. Step 2: Convert to fraction form
    3,257.07/4,885.55 = 791.87/x
  3. Step 3: Cross multiply
    3,257.07x = 4,885.55 × 791.87
  4. Step 4: Simplify right side
    3,257.07x = 3,868,728.73
  5. Step 5: Solve for x
    x = 3,868,728.73/3,257.07
  6. Step 6: Final answer
    x = 1,187.79

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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.