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Finding the Third Proportional to 5,518 and 5,998

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Solution

The third proportional to 5,518 and 5,998 is: 6,519.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,518 : 5,998 = 5,998 : x
  2. Step 2: Convert to fraction form
    5,518/5,998 = 5,998/x
  3. Step 3: Cross multiply
    5,518x = 5,998 × 5,998
  4. Step 4: Simplify right side
    5,518x = 35,976,004
  5. Step 5: Solve for x
    x = 35,976,004/5,518
  6. Step 6: Final answer
    x = 6,519.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.