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Finding the Third Proportional to 2,621 and 6,836

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Solution

The third proportional to 2,621 and 6,836 is: 17,829.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,621 : 6,836 = 6,836 : x
  2. Step 2: Convert to fraction form
    2,621/6,836 = 6,836/x
  3. Step 3: Cross multiply
    2,621x = 6,836 × 6,836
  4. Step 4: Simplify right side
    2,621x = 46,730,896
  5. Step 5: Solve for x
    x = 46,730,896/2,621
  6. Step 6: Final answer
    x = 17,829.41

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Why These Related Problems?

These problems maintain the same ratio (2.61) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.