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Finding the Third Proportional to 1,200.84 and 2,620.22

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Solution

The third proportional to 1,200.84 and 2,620.22 is: 5,717.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,200.84 : 2,620.22 = 2,620.22 : x
  2. Step 2: Convert to fraction form
    1,200.84/2,620.22 = 2,620.22/x
  3. Step 3: Cross multiply
    1,200.84x = 2,620.22 × 2,620.22
  4. Step 4: Simplify right side
    1,200.84x = 6,865,546.30
  5. Step 5: Solve for x
    x = 6,865,546.30/1,200.84
  6. Step 6: Final answer
    x = 5,717.27

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.