Home / 2,226.30-3,072.32-1,231.66

Finding the Fourth Proportional to 2,226.30, 3,072.32 and 1,231.66

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Solution

The fourth proportional to 2,226.30, 3,072.32 and 1,231.66 is: 1,699.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,226.30 : 3,072.32 = 1,231.66 : x
  2. Step 2: Convert to fraction form
    2,226.30/3,072.32 = 1,231.66/x
  3. Step 3: Cross multiply
    2,226.30x = 3,072.32 × 1,231.66
  4. Step 4: Simplify right side
    2,226.30x = 3,784,053.65
  5. Step 5: Solve for x
    x = 3,784,053.65/2,226.30
  6. Step 6: Final answer
    x = 1,699.71

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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.