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Finding the Third Proportional to 3,625 and 5,590.50

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Solution

The third proportional to 3,625 and 5,590.50 is: 8,621.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,625 : 5,590.50 = 5,590.50 : x
  2. Step 2: Convert to fraction form
    3,625/5,590.50 = 5,590.50/x
  3. Step 3: Cross multiply
    3,625x = 5,590.50 × 5,590.50
  4. Step 4: Simplify right side
    3,625x = 31,253,690.25
  5. Step 5: Solve for x
    x = 31,253,690.25/3,625
  6. Step 6: Final answer
    x = 8,621.71

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.