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Finding the Third Proportional to 1,879.88 and 4,107.38

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Solution

The third proportional to 1,879.88 and 4,107.38 is: 8,974.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,879.88 : 4,107.38 = 4,107.38 : x
  2. Step 2: Convert to fraction form
    1,879.88/4,107.38 = 4,107.38/x
  3. Step 3: Cross multiply
    1,879.88x = 4,107.38 × 4,107.38
  4. Step 4: Simplify right side
    1,879.88x = 16,870,529.39
  5. Step 5: Solve for x
    x = 16,870,529.39/1,879.88
  6. Step 6: Final answer
    x = 8,974.28

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.