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Finding the Third Proportional to 1,000.81 and 2,181.06

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Solution

The third proportional to 1,000.81 and 2,181.06 is: 4,753.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,000.81 : 2,181.06 = 2,181.06 : x
  2. Step 2: Convert to fraction form
    1,000.81/2,181.06 = 2,181.06/x
  3. Step 3: Cross multiply
    1,000.81x = 2,181.06 × 2,181.06
  4. Step 4: Simplify right side
    1,000.81x = 4,757,033.63
  5. Step 5: Solve for x
    x = 4,757,033.63/1,000.81
  6. Step 6: Final answer
    x = 4,753.17

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.