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Finding the Third Proportional to 1,890.11 and 4,108.11

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Solution

The third proportional to 1,890.11 and 4,108.11 is: 8,928.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,890.11 : 4,108.11 = 4,108.11 : x
  2. Step 2: Convert to fraction form
    1,890.11/4,108.11 = 4,108.11/x
  3. Step 3: Cross multiply
    1,890.11x = 4,108.11 × 4,108.11
  4. Step 4: Simplify right side
    1,890.11x = 16,876,594.73
  5. Step 5: Solve for x
    x = 16,876,594.73/1,890.11
  6. Step 6: Final answer
    x = 8,928.92

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.