Home / 2,872.14-3,963.42-1,613.40

Finding the Fourth Proportional to 2,872.14, 3,963.42 and 1,613.40

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Solution

The fourth proportional to 2,872.14, 3,963.42 and 1,613.40 is: 2,226.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,872.14 : 3,963.42 = 1,613.40 : x
  2. Step 2: Convert to fraction form
    2,872.14/3,963.42 = 1,613.40/x
  3. Step 3: Cross multiply
    2,872.14x = 3,963.42 × 1,613.40
  4. Step 4: Simplify right side
    2,872.14x = 6,394,581.83
  5. Step 5: Solve for x
    x = 6,394,581.83/2,872.14
  6. Step 6: Final answer
    x = 2,226.42

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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.