Home / 2,218.60-3,046.97-1,930.60

Finding the Fourth Proportional to 2,218.60, 3,046.97 and 1,930.60

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Solution

The fourth proportional to 2,218.60, 3,046.97 and 1,930.60 is: 2,651.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,218.60 : 3,046.97 = 1,930.60 : x
  2. Step 2: Convert to fraction form
    2,218.60/3,046.97 = 1,930.60/x
  3. Step 3: Cross multiply
    2,218.60x = 3,046.97 × 1,930.60
  4. Step 4: Simplify right side
    2,218.60x = 5,882,480.28
  5. Step 5: Solve for x
    x = 5,882,480.28/2,218.60
  6. Step 6: Final answer
    x = 2,651.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.