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Finding the Third Proportional to 2,609 and 3,718

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Solution

The third proportional to 2,609 and 3,718 is: 5,298.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,609 : 3,718 = 3,718 : x
  2. Step 2: Convert to fraction form
    2,609/3,718 = 3,718/x
  3. Step 3: Cross multiply
    2,609x = 3,718 × 3,718
  4. Step 4: Simplify right side
    2,609x = 13,823,524
  5. Step 5: Solve for x
    x = 13,823,524/2,609
  6. Step 6: Final answer
    x = 5,298.40

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.