Home / 3,874.35-5,346.54-2,105.99

Finding the Fourth Proportional to 3,874.35, 5,346.54 and 2,105.99

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Solution

The fourth proportional to 3,874.35, 5,346.54 and 2,105.99 is: 2,906.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,874.35 : 5,346.54 = 2,105.99 : x
  2. Step 2: Convert to fraction form
    3,874.35/5,346.54 = 2,105.99/x
  3. Step 3: Cross multiply
    3,874.35x = 5,346.54 × 2,105.99
  4. Step 4: Simplify right side
    3,874.35x = 11,259,733.04
  5. Step 5: Solve for x
    x = 11,259,733.04/3,874.35
  6. Step 6: Final answer
    x = 2,906.23

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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.