Home / 7,961.88-11,942.81-2,767.75

Finding the Fourth Proportional to 7,961.88, 11,942.81 and 2,767.75

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Solution

The fourth proportional to 7,961.88, 11,942.81 and 2,767.75 is: 4,151.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,961.88 : 11,942.81 = 2,767.75 : x
  2. Step 2: Convert to fraction form
    7,961.88/11,942.81 = 2,767.75/x
  3. Step 3: Cross multiply
    7,961.88x = 11,942.81 × 2,767.75
  4. Step 4: Simplify right side
    7,961.88x = 33,054,719.30
  5. Step 5: Solve for x
    x = 33,054,719.30/7,961.88
  6. Step 6: Final answer
    x = 4,151.63

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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.