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Finding the Fourth Proportional to 5,879.08, 8,109.78 and 3,519.88

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Solution

The fourth proportional to 5,879.08, 8,109.78 and 3,519.88 is: 4,855.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,879.08 : 8,109.78 = 3,519.88 : x
  2. Step 2: Convert to fraction form
    5,879.08/8,109.78 = 3,519.88/x
  3. Step 3: Cross multiply
    5,879.08x = 8,109.78 × 3,519.88
  4. Step 4: Simplify right side
    5,879.08x = 28,545,452.43
  5. Step 5: Solve for x
    x = 28,545,452.43/5,879.08
  6. Step 6: Final answer
    x = 4,855.43

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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.