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Finding the Third Proportional to 3,309 and 4,704.50

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Solution

The third proportional to 3,309 and 4,704.50 is: 6,688.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,309 : 4,704.50 = 4,704.50 : x
  2. Step 2: Convert to fraction form
    3,309/4,704.50 = 4,704.50/x
  3. Step 3: Cross multiply
    3,309x = 4,704.50 × 4,704.50
  4. Step 4: Simplify right side
    3,309x = 22,132,320.25
  5. Step 5: Solve for x
    x = 22,132,320.25/3,309
  6. Step 6: Final answer
    x = 6,688.52

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Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.