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Finding the Third Proportional to 3,955.50 and 4,473.75

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Solution

The third proportional to 3,955.50 and 4,473.75 is: 5,059.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,955.50 : 4,473.75 = 4,473.75 : x
  2. Step 2: Convert to fraction form
    3,955.50/4,473.75 = 4,473.75/x
  3. Step 3: Cross multiply
    3,955.50x = 4,473.75 × 4,473.75
  4. Step 4: Simplify right side
    3,955.50x = 20,014,439.06
  5. Step 5: Solve for x
    x = 20,014,439.06/3,955.50
  6. Step 6: Final answer
    x = 5,059.90

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Why These Related Problems?

These problems maintain the same ratio (1.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.