Home / 2,961.78-4,440.27-1,231.70

Finding the Fourth Proportional to 2,961.78, 4,440.27 and 1,231.70

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Solution

The fourth proportional to 2,961.78, 4,440.27 and 1,231.70 is: 1,846.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,961.78 : 4,440.27 = 1,231.70 : x
  2. Step 2: Convert to fraction form
    2,961.78/4,440.27 = 1,231.70/x
  3. Step 3: Cross multiply
    2,961.78x = 4,440.27 × 1,231.70
  4. Step 4: Simplify right side
    2,961.78x = 5,469,080.56
  5. Step 5: Solve for x
    x = 5,469,080.56/2,961.78
  6. Step 6: Final answer
    x = 1,846.55

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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.