Home / 3,977.30-5,488.68-2,208.86

Finding the Fourth Proportional to 3,977.30, 5,488.68 and 2,208.86

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Solution

The fourth proportional to 3,977.30, 5,488.68 and 2,208.86 is: 3,048.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,977.30 : 5,488.68 = 2,208.86 : x
  2. Step 2: Convert to fraction form
    3,977.30/5,488.68 = 2,208.86/x
  3. Step 3: Cross multiply
    3,977.30x = 5,488.68 × 2,208.86
  4. Step 4: Simplify right side
    3,977.30x = 12,123,725.70
  5. Step 5: Solve for x
    x = 12,123,725.70/3,977.30
  6. Step 6: Final answer
    x = 3,048.23

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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.