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Finding the Fourth Proportional to 6,441.26, 8,889.30 and 3,789.44

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Solution

The fourth proportional to 6,441.26, 8,889.30 and 3,789.44 is: 5,229.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,441.26 : 8,889.30 = 3,789.44 : x
  2. Step 2: Convert to fraction form
    6,441.26/8,889.30 = 3,789.44/x
  3. Step 3: Cross multiply
    6,441.26x = 8,889.30 × 3,789.44
  4. Step 4: Simplify right side
    6,441.26x = 33,685,468.99
  5. Step 5: Solve for x
    x = 33,685,468.99/6,441.26
  6. Step 6: Final answer
    x = 5,229.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.