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Finding the Third Proportional to 3,663 and 5,490

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Solution

The third proportional to 3,663 and 5,490 is: 8,228.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,663 : 5,490 = 5,490 : x
  2. Step 2: Convert to fraction form
    3,663/5,490 = 5,490/x
  3. Step 3: Cross multiply
    3,663x = 5,490 × 5,490
  4. Step 4: Simplify right side
    3,663x = 30,140,100
  5. Step 5: Solve for x
    x = 30,140,100/3,663
  6. Step 6: Final answer
    x = 8,228.26

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.