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Finding the Third Proportional to 3,171.75 and 4,729.13

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Solution

The third proportional to 3,171.75 and 4,729.13 is: 7,051.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,171.75 : 4,729.13 = 4,729.13 : x
  2. Step 2: Convert to fraction form
    3,171.75/4,729.13 = 4,729.13/x
  3. Step 3: Cross multiply
    3,171.75x = 4,729.13 × 4,729.13
  4. Step 4: Simplify right side
    3,171.75x = 22,364,623.27
  5. Step 5: Solve for x
    x = 22,364,623.27/3,171.75
  6. Step 6: Final answer
    x = 7,051.19

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These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.