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Finding the Third Proportional to 2,172.38 and 4,584.09

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Solution

The third proportional to 2,172.38 and 4,584.09 is: 9,673.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,172.38 : 4,584.09 = 4,584.09 : x
  2. Step 2: Convert to fraction form
    2,172.38/4,584.09 = 4,584.09/x
  3. Step 3: Cross multiply
    2,172.38x = 4,584.09 × 4,584.09
  4. Step 4: Simplify right side
    2,172.38x = 21,013,915.51
  5. Step 5: Solve for x
    x = 21,013,915.51/2,172.38
  6. Step 6: Final answer
    x = 9,673.24

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.