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Finding the Third Proportional to 3,620 and 7,417

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Solution

The third proportional to 3,620 and 7,417 is: 15,196.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,620 : 7,417 = 7,417 : x
  2. Step 2: Convert to fraction form
    3,620/7,417 = 7,417/x
  3. Step 3: Cross multiply
    3,620x = 7,417 × 7,417
  4. Step 4: Simplify right side
    3,620x = 55,011,889
  5. Step 5: Solve for x
    x = 55,011,889/3,620
  6. Step 6: Final answer
    x = 15,196.65

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Why These Related Problems?

These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.