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Finding the Third Proportional to 1,528.03 and 3,321.84

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Solution

The third proportional to 1,528.03 and 3,321.84 is: 7,221.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,528.03 : 3,321.84 = 3,321.84 : x
  2. Step 2: Convert to fraction form
    1,528.03/3,321.84 = 3,321.84/x
  3. Step 3: Cross multiply
    1,528.03x = 3,321.84 × 3,321.84
  4. Step 4: Simplify right side
    1,528.03x = 11,034,645.90
  5. Step 5: Solve for x
    x = 11,034,645.90/1,528.03
  6. Step 6: Final answer
    x = 7,221.48

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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.