Home / 3,977.73-5,489.28-2,209.37

Finding the Fourth Proportional to 3,977.73, 5,489.28 and 2,209.37

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Solution

The fourth proportional to 3,977.73, 5,489.28 and 2,209.37 is: 3,048.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,977.73 : 5,489.28 = 2,209.37 : x
  2. Step 2: Convert to fraction form
    3,977.73/5,489.28 = 2,209.37/x
  3. Step 3: Cross multiply
    3,977.73x = 5,489.28 × 2,209.37
  4. Step 4: Simplify right side
    3,977.73x = 12,127,823.11
  5. Step 5: Solve for x
    x = 12,127,823.11/3,977.73
  6. Step 6: Final answer
    x = 3,048.93

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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.