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Finding the Third Proportional to 1,528.25 and 3,299.75

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Solution

The third proportional to 1,528.25 and 3,299.75 is: 7,124.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,528.25 : 3,299.75 = 3,299.75 : x
  2. Step 2: Convert to fraction form
    1,528.25/3,299.75 = 3,299.75/x
  3. Step 3: Cross multiply
    1,528.25x = 3,299.75 × 3,299.75
  4. Step 4: Simplify right side
    1,528.25x = 10,888,350.06
  5. Step 5: Solve for x
    x = 10,888,350.06/1,528.25
  6. Step 6: Final answer
    x = 7,124.72

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.