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Finding the Third Proportional to 1,812 and 3,868.13

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Solution

The third proportional to 1,812 and 3,868.13 is: 8,257.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,812 : 3,868.13 = 3,868.13 : x
  2. Step 2: Convert to fraction form
    1,812/3,868.13 = 3,868.13/x
  3. Step 3: Cross multiply
    1,812x = 3,868.13 × 3,868.13
  4. Step 4: Simplify right side
    1,812x = 14,962,391.02
  5. Step 5: Solve for x
    x = 14,962,391.02/1,812
  6. Step 6: Final answer
    x = 8,257.39

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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.