Home / 3,977.25-5,488.45-2,208.97

Finding the Fourth Proportional to 3,977.25, 5,488.45 and 2,208.97

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Solution

The fourth proportional to 3,977.25, 5,488.45 and 2,208.97 is: 3,048.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,977.25 : 5,488.45 = 2,208.97 : x
  2. Step 2: Convert to fraction form
    3,977.25/5,488.45 = 2,208.97/x
  3. Step 3: Cross multiply
    3,977.25x = 5,488.45 × 2,208.97
  4. Step 4: Simplify right side
    3,977.25x = 12,123,813.20
  5. Step 5: Solve for x
    x = 12,123,813.20/3,977.25
  6. Step 6: Final answer
    x = 3,048.29

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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.