Home / 3,879.11-5,774.78-3,856.04

Finding the Fourth Proportional to 3,879.11, 5,774.78 and 3,856.04

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Solution

The fourth proportional to 3,879.11, 5,774.78 and 3,856.04 is: 5,740.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,879.11 : 5,774.78 = 3,856.04 : x
  2. Step 2: Convert to fraction form
    3,879.11/5,774.78 = 3,856.04/x
  3. Step 3: Cross multiply
    3,879.11x = 5,774.78 × 3,856.04
  4. Step 4: Simplify right side
    3,879.11x = 22,267,782.67
  5. Step 5: Solve for x
    x = 22,267,782.67/3,879.11
  6. Step 6: Final answer
    x = 5,740.44

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.