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Finding the Third Proportional to 1,998.84 and 4,125.94

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Solution

The third proportional to 1,998.84 and 4,125.94 is: 8,516.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,998.84 : 4,125.94 = 4,125.94 : x
  2. Step 2: Convert to fraction form
    1,998.84/4,125.94 = 4,125.94/x
  3. Step 3: Cross multiply
    1,998.84x = 4,125.94 × 4,125.94
  4. Step 4: Simplify right side
    1,998.84x = 17,023,360.25
  5. Step 5: Solve for x
    x = 17,023,360.25/1,998.84
  6. Step 6: Final answer
    x = 8,516.60

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Why These Related Problems?

These problems maintain the same ratio (2.06) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.