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Finding the Third Proportional to 4,280.50 and 9,425

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Solution

The third proportional to 4,280.50 and 9,425 is: 20,752.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,280.50 : 9,425 = 9,425 : x
  2. Step 2: Convert to fraction form
    4,280.50/9,425 = 9,425/x
  3. Step 3: Cross multiply
    4,280.50x = 9,425 × 9,425
  4. Step 4: Simplify right side
    4,280.50x = 88,830,625
  5. Step 5: Solve for x
    x = 88,830,625/4,280.50
  6. Step 6: Final answer
    x = 20,752.39

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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.