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Finding the Third Proportional to 3,690 and 6,514

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Solution

The third proportional to 3,690 and 6,514 is: 11,499.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,690 : 6,514 = 6,514 : x
  2. Step 2: Convert to fraction form
    3,690/6,514 = 6,514/x
  3. Step 3: Cross multiply
    3,690x = 6,514 × 6,514
  4. Step 4: Simplify right side
    3,690x = 42,432,196
  5. Step 5: Solve for x
    x = 42,432,196/3,690
  6. Step 6: Final answer
    x = 11,499.24

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Why These Related Problems?

These problems maintain the same ratio (1.77) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.