Home / 3,977.93-5,489.38-2,209.64

Finding the Fourth Proportional to 3,977.93, 5,489.38 and 2,209.64

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Solution

The fourth proportional to 3,977.93, 5,489.38 and 2,209.64 is: 3,049.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,977.93 : 5,489.38 = 2,209.64 : x
  2. Step 2: Convert to fraction form
    3,977.93/5,489.38 = 2,209.64/x
  3. Step 3: Cross multiply
    3,977.93x = 5,489.38 × 2,209.64
  4. Step 4: Simplify right side
    3,977.93x = 12,129,567.35
  5. Step 5: Solve for x
    x = 12,129,567.35/3,977.93
  6. Step 6: Final answer
    x = 3,049.22

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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.