Home / 6,620.22-9,136.11-3,825.72

Finding the Fourth Proportional to 6,620.22, 9,136.11 and 3,825.72

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Solution

The fourth proportional to 6,620.22, 9,136.11 and 3,825.72 is: 5,279.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,620.22 : 9,136.11 = 3,825.72 : x
  2. Step 2: Convert to fraction form
    6,620.22/9,136.11 = 3,825.72/x
  3. Step 3: Cross multiply
    6,620.22x = 9,136.11 × 3,825.72
  4. Step 4: Simplify right side
    6,620.22x = 34,952,198.75
  5. Step 5: Solve for x
    x = 34,952,198.75/6,620.22
  6. Step 6: Final answer
    x = 5,279.61

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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.