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Finding the Third Proportional to 2,620 and 3,559

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Solution

The third proportional to 2,620 and 3,559 is: 4,834.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,620 : 3,559 = 3,559 : x
  2. Step 2: Convert to fraction form
    2,620/3,559 = 3,559/x
  3. Step 3: Cross multiply
    2,620x = 3,559 × 3,559
  4. Step 4: Simplify right side
    2,620x = 12,666,481
  5. Step 5: Solve for x
    x = 12,666,481/2,620
  6. Step 6: Final answer
    x = 4,834.53

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.