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Finding the Third Proportional to 4,288.50 and 4,740.75

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Solution

The third proportional to 4,288.50 and 4,740.75 is: 5,240.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,288.50 : 4,740.75 = 4,740.75 : x
  2. Step 2: Convert to fraction form
    4,288.50/4,740.75 = 4,740.75/x
  3. Step 3: Cross multiply
    4,288.50x = 4,740.75 × 4,740.75
  4. Step 4: Simplify right side
    4,288.50x = 22,474,710.56
  5. Step 5: Solve for x
    x = 22,474,710.56/4,288.50
  6. Step 6: Final answer
    x = 5,240.69

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Why These Related Problems?

These problems maintain the same ratio (1.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.