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Finding the Third Proportional to 1,644.05 and 2,147.13

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Solution

The third proportional to 1,644.05 and 2,147.13 is: 2,804.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,644.05 : 2,147.13 = 2,147.13 : x
  2. Step 2: Convert to fraction form
    1,644.05/2,147.13 = 2,147.13/x
  3. Step 3: Cross multiply
    1,644.05x = 2,147.13 × 2,147.13
  4. Step 4: Simplify right side
    1,644.05x = 4,610,179.31
  5. Step 5: Solve for x
    x = 4,610,179.31/1,644.05
  6. Step 6: Final answer
    x = 2,804.17

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Why These Related Problems?

These problems maintain the same ratio (1.31) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.