Home / 3,874.56-5,346.92-2,106.18

Finding the Fourth Proportional to 3,874.56, 5,346.92 and 2,106.18

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Solution

The fourth proportional to 3,874.56, 5,346.92 and 2,106.18 is: 2,906.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,874.56 : 5,346.92 = 2,106.18 : x
  2. Step 2: Convert to fraction form
    3,874.56/5,346.92 = 2,106.18/x
  3. Step 3: Cross multiply
    3,874.56x = 5,346.92 × 2,106.18
  4. Step 4: Simplify right side
    3,874.56x = 11,261,565.43
  5. Step 5: Solve for x
    x = 11,261,565.43/3,874.56
  6. Step 6: Final answer
    x = 2,906.54

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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.