Home / 3,198.78-4,791.80-2,541.78

Finding the Fourth Proportional to 3,198.78, 4,791.80 and 2,541.78

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Solution

The fourth proportional to 3,198.78, 4,791.80 and 2,541.78 is: 3,807.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,198.78 : 4,791.80 = 2,541.78 : x
  2. Step 2: Convert to fraction form
    3,198.78/4,791.80 = 2,541.78/x
  3. Step 3: Cross multiply
    3,198.78x = 4,791.80 × 2,541.78
  4. Step 4: Simplify right side
    3,198.78x = 12,179,707.76
  5. Step 5: Solve for x
    x = 12,179,707.76/3,198.78
  6. Step 6: Final answer
    x = 3,807.61

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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.