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Finding the Third Proportional to 2,101 and 4,520

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Solution

The third proportional to 2,101 and 4,520 is: 9,724.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,101 : 4,520 = 4,520 : x
  2. Step 2: Convert to fraction form
    2,101/4,520 = 4,520/x
  3. Step 3: Cross multiply
    2,101x = 4,520 × 4,520
  4. Step 4: Simplify right side
    2,101x = 20,430,400
  5. Step 5: Solve for x
    x = 20,430,400/2,101
  6. Step 6: Final answer
    x = 9,724.13

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.