Home / 3,974.21-5,485.39-2,296.58

Finding the Fourth Proportional to 3,974.21, 5,485.39 and 2,296.58

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Solution

The fourth proportional to 3,974.21, 5,485.39 and 2,296.58 is: 3,169.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,974.21 : 5,485.39 = 2,296.58 : x
  2. Step 2: Convert to fraction form
    3,974.21/5,485.39 = 2,296.58/x
  3. Step 3: Cross multiply
    3,974.21x = 5,485.39 × 2,296.58
  4. Step 4: Simplify right side
    3,974.21x = 12,597,636.97
  5. Step 5: Solve for x
    x = 12,597,636.97/3,974.21
  6. Step 6: Final answer
    x = 3,169.85

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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.