Home / 2,874.42-3,961.98-2,209.95

Finding the Fourth Proportional to 2,874.42, 3,961.98 and 2,209.95

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Solution

The fourth proportional to 2,874.42, 3,961.98 and 2,209.95 is: 3,046.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,874.42 : 3,961.98 = 2,209.95 : x
  2. Step 2: Convert to fraction form
    2,874.42/3,961.98 = 2,209.95/x
  3. Step 3: Cross multiply
    2,874.42x = 3,961.98 × 2,209.95
  4. Step 4: Simplify right side
    2,874.42x = 8,755,777.70
  5. Step 5: Solve for x
    x = 8,755,777.70/2,874.42
  6. Step 6: Final answer
    x = 3,046.10

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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.