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Finding the Third Proportional to 745.03 and 1,639.41

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Solution

The third proportional to 745.03 and 1,639.41 is: 3,607.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    745.03 : 1,639.41 = 1,639.41 : x
  2. Step 2: Convert to fraction form
    745.03/1,639.41 = 1,639.41/x
  3. Step 3: Cross multiply
    745.03x = 1,639.41 × 1,639.41
  4. Step 4: Simplify right side
    745.03x = 2,687,652.85
  5. Step 5: Solve for x
    x = 2,687,652.85/745.03
  6. Step 6: Final answer
    x = 3,607.44

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.