Home / 2,757.89-3,805.49-1,963.28

Finding the Fourth Proportional to 2,757.89, 3,805.49 and 1,963.28

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Solution

The fourth proportional to 2,757.89, 3,805.49 and 1,963.28 is: 2,709.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,757.89 : 3,805.49 = 1,963.28 : x
  2. Step 2: Convert to fraction form
    2,757.89/3,805.49 = 1,963.28/x
  3. Step 3: Cross multiply
    2,757.89x = 3,805.49 × 1,963.28
  4. Step 4: Simplify right side
    2,757.89x = 7,471,213.56
  5. Step 5: Solve for x
    x = 7,471,213.56/2,757.89
  6. Step 6: Final answer
    x = 2,709.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.