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Finding the Third Proportional to 4,428.56 and 6,630.75

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Solution

The third proportional to 4,428.56 and 6,630.75 is: 9,928.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,428.56 : 6,630.75 = 6,630.75 : x
  2. Step 2: Convert to fraction form
    4,428.56/6,630.75 = 6,630.75/x
  3. Step 3: Cross multiply
    4,428.56x = 6,630.75 × 6,630.75
  4. Step 4: Simplify right side
    4,428.56x = 43,966,845.56
  5. Step 5: Solve for x
    x = 43,966,845.56/4,428.56
  6. Step 6: Final answer
    x = 9,928.02

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.