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Finding the Fourth Proportional to 7,469.57, 11,203.06 and 2,789.09

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Solution

The fourth proportional to 7,469.57, 11,203.06 and 2,789.09 is: 4,183.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,469.57 : 11,203.06 = 2,789.09 : x
  2. Step 2: Convert to fraction form
    7,469.57/11,203.06 = 2,789.09/x
  3. Step 3: Cross multiply
    7,469.57x = 11,203.06 × 2,789.09
  4. Step 4: Simplify right side
    7,469.57x = 31,246,342.62
  5. Step 5: Solve for x
    x = 31,246,342.62/7,469.57
  6. Step 6: Final answer
    x = 4,183.15

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1.5x scale

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.