Home / 2,872.39-3,963.61-1,613.35

Finding the Fourth Proportional to 2,872.39, 3,963.61 and 1,613.35

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Solution

The fourth proportional to 2,872.39, 3,963.61 and 1,613.35 is: 2,226.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,872.39 : 3,963.61 = 1,613.35 : x
  2. Step 2: Convert to fraction form
    2,872.39/3,963.61 = 1,613.35/x
  3. Step 3: Cross multiply
    2,872.39x = 3,963.61 × 1,613.35
  4. Step 4: Simplify right side
    2,872.39x = 6,394,690.19
  5. Step 5: Solve for x
    x = 6,394,690.19/2,872.39
  6. Step 6: Final answer
    x = 2,226.26

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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.