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Finding the Third Proportional to 2,642.63 and 3,984.19

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Solution

The third proportional to 2,642.63 and 3,984.19 is: 6,006.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,642.63 : 3,984.19 = 3,984.19 : x
  2. Step 2: Convert to fraction form
    2,642.63/3,984.19 = 3,984.19/x
  3. Step 3: Cross multiply
    2,642.63x = 3,984.19 × 3,984.19
  4. Step 4: Simplify right side
    2,642.63x = 15,873,750.04
  5. Step 5: Solve for x
    x = 15,873,750.04/2,642.63
  6. Step 6: Final answer
    x = 6,006.81

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.