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Finding the Third Proportional to 1,645 and 3,524

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Solution

The third proportional to 1,645 and 3,524 is: 7,549.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,645 : 3,524 = 3,524 : x
  2. Step 2: Convert to fraction form
    1,645/3,524 = 3,524/x
  3. Step 3: Cross multiply
    1,645x = 3,524 × 3,524
  4. Step 4: Simplify right side
    1,645x = 12,418,576
  5. Step 5: Solve for x
    x = 12,418,576/1,645
  6. Step 6: Final answer
    x = 7,549.29

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.