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Finding the Fourth Proportional to 3,286.66, 4,930.98 and 1,899.68

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Solution

The fourth proportional to 3,286.66, 4,930.98 and 1,899.68 is: 2,850.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,286.66 : 4,930.98 = 1,899.68 : x
  2. Step 2: Convert to fraction form
    3,286.66/4,930.98 = 1,899.68/x
  3. Step 3: Cross multiply
    3,286.66x = 4,930.98 × 1,899.68
  4. Step 4: Simplify right side
    3,286.66x = 9,367,284.09
  5. Step 5: Solve for x
    x = 9,367,284.09/3,286.66
  6. Step 6: Final answer
    x = 2,850.09

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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.