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Finding the Third Proportional to 2,790 and 6,015

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Solution

The third proportional to 2,790 and 6,015 is: 12,967.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,790 : 6,015 = 6,015 : x
  2. Step 2: Convert to fraction form
    2,790/6,015 = 6,015/x
  3. Step 3: Cross multiply
    2,790x = 6,015 × 6,015
  4. Step 4: Simplify right side
    2,790x = 36,180,225
  5. Step 5: Solve for x
    x = 36,180,225/2,790
  6. Step 6: Final answer
    x = 12,967.82

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.