Home / 5,879.45-8,112.12-3,519.92

Finding the Fourth Proportional to 5,879.45, 8,112.12 and 3,519.92

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Solution

The fourth proportional to 5,879.45, 8,112.12 and 3,519.92 is: 4,856.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,879.45 : 8,112.12 = 3,519.92 : x
  2. Step 2: Convert to fraction form
    5,879.45/8,112.12 = 3,519.92/x
  3. Step 3: Cross multiply
    5,879.45x = 8,112.12 × 3,519.92
  4. Step 4: Simplify right side
    5,879.45x = 28,553,972.87
  5. Step 5: Solve for x
    x = 28,553,972.87/5,879.45
  6. Step 6: Final answer
    x = 4,856.58

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1.5x scale

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.