Home / 2,743.78-4,118.10-1,963.75

Finding the Fourth Proportional to 2,743.78, 4,118.10 and 1,963.75

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Solution

The fourth proportional to 2,743.78, 4,118.10 and 1,963.75 is: 2,947.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,743.78 : 4,118.10 = 1,963.75 : x
  2. Step 2: Convert to fraction form
    2,743.78/4,118.10 = 1,963.75/x
  3. Step 3: Cross multiply
    2,743.78x = 4,118.10 × 1,963.75
  4. Step 4: Simplify right side
    2,743.78x = 8,086,918.88
  5. Step 5: Solve for x
    x = 8,086,918.88/2,743.78
  6. Step 6: Final answer
    x = 2,947.36

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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.