Home / 3,976.70-5,488.49-2,208.87

Finding the Fourth Proportional to 3,976.70, 5,488.49 and 2,208.87

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Solution

The fourth proportional to 3,976.70, 5,488.49 and 2,208.87 is: 3,048.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,976.70 : 5,488.49 = 2,208.87 : x
  2. Step 2: Convert to fraction form
    3,976.70/5,488.49 = 2,208.87/x
  3. Step 3: Cross multiply
    3,976.70x = 5,488.49 × 2,208.87
  4. Step 4: Simplify right side
    3,976.70x = 12,123,366.43
  5. Step 5: Solve for x
    x = 12,123,366.43/3,976.70
  6. Step 6: Final answer
    x = 3,048.60

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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.