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Finding the Third Proportional to 1,910 and 4,065

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Solution

The third proportional to 1,910 and 4,065 is: 8,651.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,910 : 4,065 = 4,065 : x
  2. Step 2: Convert to fraction form
    1,910/4,065 = 4,065/x
  3. Step 3: Cross multiply
    1,910x = 4,065 × 4,065
  4. Step 4: Simplify right side
    1,910x = 16,524,225
  5. Step 5: Solve for x
    x = 16,524,225/1,910
  6. Step 6: Final answer
    x = 8,651.43

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.