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Finding the Fourth Proportional to 4,422.87, 6,634.22 and 1,789.65

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Solution

The fourth proportional to 4,422.87, 6,634.22 and 1,789.65 is: 2,684.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,422.87 : 6,634.22 = 1,789.65 : x
  2. Step 2: Convert to fraction form
    4,422.87/6,634.22 = 1,789.65/x
  3. Step 3: Cross multiply
    4,422.87x = 6,634.22 × 1,789.65
  4. Step 4: Simplify right side
    4,422.87x = 11,872,922.87
  5. Step 5: Solve for x
    x = 11,872,922.87/4,422.87
  6. Step 6: Final answer
    x = 2,684.44

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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.