Home / 2,872.12-3,963.60-1,613.14

Finding the Fourth Proportional to 2,872.12, 3,963.60 and 1,613.14

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Solution

The fourth proportional to 2,872.12, 3,963.60 and 1,613.14 is: 2,226.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,872.12 : 3,963.60 = 1,613.14 : x
  2. Step 2: Convert to fraction form
    2,872.12/3,963.60 = 1,613.14/x
  3. Step 3: Cross multiply
    2,872.12x = 3,963.60 × 1,613.14
  4. Step 4: Simplify right side
    2,872.12x = 6,393,841.70
  5. Step 5: Solve for x
    x = 6,393,841.70/2,872.12
  6. Step 6: Final answer
    x = 2,226.17

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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.