Home / 6,620.94-9,141.18-4,105.73

Finding the Fourth Proportional to 6,620.94, 9,141.18 and 4,105.73

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Solution

The fourth proportional to 6,620.94, 9,141.18 and 4,105.73 is: 5,668.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,620.94 : 9,141.18 = 4,105.73 : x
  2. Step 2: Convert to fraction form
    6,620.94/9,141.18 = 4,105.73/x
  3. Step 3: Cross multiply
    6,620.94x = 9,141.18 × 4,105.73
  4. Step 4: Simplify right side
    6,620.94x = 37,531,171.26
  5. Step 5: Solve for x
    x = 37,531,171.26/6,620.94
  6. Step 6: Final answer
    x = 5,668.56

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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.