Home / 7,961.88-11,942.82-3,860.76

Finding the Fourth Proportional to 7,961.88, 11,942.82 and 3,860.76

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Solution

The fourth proportional to 7,961.88, 11,942.82 and 3,860.76 is: 5,791.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,961.88 : 11,942.82 = 3,860.76 : x
  2. Step 2: Convert to fraction form
    7,961.88/11,942.82 = 3,860.76/x
  3. Step 3: Cross multiply
    7,961.88x = 11,942.82 × 3,860.76
  4. Step 4: Simplify right side
    7,961.88x = 46,108,361.74
  5. Step 5: Solve for x
    x = 46,108,361.74/7,961.88
  6. Step 6: Final answer
    x = 5,791.14

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Similar ratio
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1.5x scale

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.