Home / 2,226.39-3,072.39-1,231.66

Finding the Fourth Proportional to 2,226.39, 3,072.39 and 1,231.66

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Solution

The fourth proportional to 2,226.39, 3,072.39 and 1,231.66 is: 1,699.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,226.39 : 3,072.39 = 1,231.66 : x
  2. Step 2: Convert to fraction form
    2,226.39/3,072.39 = 1,231.66/x
  3. Step 3: Cross multiply
    2,226.39x = 3,072.39 × 1,231.66
  4. Step 4: Simplify right side
    2,226.39x = 3,784,139.87
  5. Step 5: Solve for x
    x = 3,784,139.87/2,226.39
  6. Step 6: Final answer
    x = 1,699.68

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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.