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Finding the Third Proportional to 2,153 and 5,351

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Solution

The third proportional to 2,153 and 5,351 is: 13,299.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,153 : 5,351 = 5,351 : x
  2. Step 2: Convert to fraction form
    2,153/5,351 = 5,351/x
  3. Step 3: Cross multiply
    2,153x = 5,351 × 5,351
  4. Step 4: Simplify right side
    2,153x = 28,633,201
  5. Step 5: Solve for x
    x = 28,633,201/2,153
  6. Step 6: Final answer
    x = 13,299.21

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Why These Related Problems?

These problems maintain the same ratio (2.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.