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Finding the Third Proportional to 869.34 and 1,810.41

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Solution

The third proportional to 869.34 and 1,810.41 is: 3,770.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    869.34 : 1,810.41 = 1,810.41 : x
  2. Step 2: Convert to fraction form
    869.34/1,810.41 = 1,810.41/x
  3. Step 3: Cross multiply
    869.34x = 1,810.41 × 1,810.41
  4. Step 4: Simplify right side
    869.34x = 3,277,570.79
  5. Step 5: Solve for x
    x = 3,277,570.79/869.34
  6. Step 6: Final answer
    x = 3,770.17

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.