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Finding the Third Proportional to 1,817.44 and 1,971.84

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Solution

The third proportional to 1,817.44 and 1,971.84 is: 2,139.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,817.44 : 1,971.84 = 1,971.84 : x
  2. Step 2: Convert to fraction form
    1,817.44/1,971.84 = 1,971.84/x
  3. Step 3: Cross multiply
    1,817.44x = 1,971.84 × 1,971.84
  4. Step 4: Simplify right side
    1,817.44x = 3,888,167.77
  5. Step 5: Solve for x
    x = 3,888,167.77/1,817.44
  6. Step 6: Final answer
    x = 2,139.37

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Why These Related Problems?

These problems maintain the same ratio (1.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.