Home / 3,977.73-5,489.19-2,209.41

Finding the Fourth Proportional to 3,977.73, 5,489.19 and 2,209.41

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Solution

The fourth proportional to 3,977.73, 5,489.19 and 2,209.41 is: 3,048.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,977.73 : 5,489.19 = 2,209.41 : x
  2. Step 2: Convert to fraction form
    3,977.73/5,489.19 = 2,209.41/x
  3. Step 3: Cross multiply
    3,977.73x = 5,489.19 × 2,209.41
  4. Step 4: Simplify right side
    3,977.73x = 12,127,871.28
  5. Step 5: Solve for x
    x = 12,127,871.28/3,977.73
  6. Step 6: Final answer
    x = 3,048.94

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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.