Home / 2,872.28-3,963.42-1,613.24

Finding the Fourth Proportional to 2,872.28, 3,963.42 and 1,613.24

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Solution

The fourth proportional to 2,872.28, 3,963.42 and 1,613.24 is: 2,226.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,872.28 : 3,963.42 = 1,613.24 : x
  2. Step 2: Convert to fraction form
    2,872.28/3,963.42 = 1,613.24/x
  3. Step 3: Cross multiply
    2,872.28x = 3,963.42 × 1,613.24
  4. Step 4: Simplify right side
    2,872.28x = 6,393,947.68
  5. Step 5: Solve for x
    x = 6,393,947.68/2,872.28
  6. Step 6: Final answer
    x = 2,226.09

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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.