Home / 3,874.32-5,346.57-2,105.95

Finding the Fourth Proportional to 3,874.32, 5,346.57 and 2,105.95

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Solution

The fourth proportional to 3,874.32, 5,346.57 and 2,105.95 is: 2,906.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,874.32 : 5,346.57 = 2,105.95 : x
  2. Step 2: Convert to fraction form
    3,874.32/5,346.57 = 2,105.95/x
  3. Step 3: Cross multiply
    3,874.32x = 5,346.57 × 2,105.95
  4. Step 4: Simplify right side
    3,874.32x = 11,259,609.09
  5. Step 5: Solve for x
    x = 11,259,609.09/3,874.32
  6. Step 6: Final answer
    x = 2,906.22

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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.