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Finding the Third Proportional to 3,119 and 6,499

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Solution

The third proportional to 3,119 and 6,499 is: 13,541.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,119 : 6,499 = 6,499 : x
  2. Step 2: Convert to fraction form
    3,119/6,499 = 6,499/x
  3. Step 3: Cross multiply
    3,119x = 6,499 × 6,499
  4. Step 4: Simplify right side
    3,119x = 42,237,001
  5. Step 5: Solve for x
    x = 42,237,001/3,119
  6. Step 6: Final answer
    x = 13,541.84

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.