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Finding the Third Proportional to 2,021.20 and 3,019.36

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Solution

The third proportional to 2,021.20 and 3,019.36 is: 4,510.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,021.20 : 3,019.36 = 3,019.36 : x
  2. Step 2: Convert to fraction form
    2,021.20/3,019.36 = 3,019.36/x
  3. Step 3: Cross multiply
    2,021.20x = 3,019.36 × 3,019.36
  4. Step 4: Simplify right side
    2,021.20x = 9,116,531.04
  5. Step 5: Solve for x
    x = 9,116,531.04/2,021.20
  6. Step 6: Final answer
    x = 4,510.45

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.