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Finding the Third Proportional to 2,520 and 3,729

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Solution

The third proportional to 2,520 and 3,729 is: 5,518.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,520 : 3,729 = 3,729 : x
  2. Step 2: Convert to fraction form
    2,520/3,729 = 3,729/x
  3. Step 3: Cross multiply
    2,520x = 3,729 × 3,729
  4. Step 4: Simplify right side
    2,520x = 13,905,441
  5. Step 5: Solve for x
    x = 13,905,441/2,520
  6. Step 6: Final answer
    x = 5,518.03

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Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.