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Finding the Third Proportional to 1,679.06 and 3,645.84

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Solution

The third proportional to 1,679.06 and 3,645.84 is: 7,916.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,679.06 : 3,645.84 = 3,645.84 : x
  2. Step 2: Convert to fraction form
    1,679.06/3,645.84 = 3,645.84/x
  3. Step 3: Cross multiply
    1,679.06x = 3,645.84 × 3,645.84
  4. Step 4: Simplify right side
    1,679.06x = 13,292,176.65
  5. Step 5: Solve for x
    x = 13,292,176.65/1,679.06
  6. Step 6: Final answer
    x = 7,916.43

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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.