Home / 3,855.01-5,319.92-2,086.62

Finding the Fourth Proportional to 3,855.01, 5,319.92 and 2,086.62

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Solution

The fourth proportional to 3,855.01, 5,319.92 and 2,086.62 is: 2,879.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,855.01 : 5,319.92 = 2,086.62 : x
  2. Step 2: Convert to fraction form
    3,855.01/5,319.92 = 2,086.62/x
  3. Step 3: Cross multiply
    3,855.01x = 5,319.92 × 2,086.62
  4. Step 4: Simplify right side
    3,855.01x = 11,100,652.54
  5. Step 5: Solve for x
    x = 11,100,652.54/3,855.01
  6. Step 6: Final answer
    x = 2,879.54

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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.