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Finding the Third Proportional to 2,689.88 and 3,607.66

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Solution

The third proportional to 2,689.88 and 3,607.66 is: 4,838.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,689.88 : 3,607.66 = 3,607.66 : x
  2. Step 2: Convert to fraction form
    2,689.88/3,607.66 = 3,607.66/x
  3. Step 3: Cross multiply
    2,689.88x = 3,607.66 × 3,607.66
  4. Step 4: Simplify right side
    2,689.88x = 13,015,239.99
  5. Step 5: Solve for x
    x = 13,015,239.99/2,689.88
  6. Step 6: Final answer
    x = 4,838.60

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Why These Related Problems?

These problems maintain the same ratio (1.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.