Home / 2,226.56-3,072.59-1,231.80

Finding the Fourth Proportional to 2,226.56, 3,072.59 and 1,231.80

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Solution

The fourth proportional to 2,226.56, 3,072.59 and 1,231.80 is: 1,699.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,226.56 : 3,072.59 = 1,231.80 : x
  2. Step 2: Convert to fraction form
    2,226.56/3,072.59 = 1,231.80/x
  3. Step 3: Cross multiply
    2,226.56x = 3,072.59 × 1,231.80
  4. Step 4: Simplify right side
    2,226.56x = 3,784,810.20
  5. Step 5: Solve for x
    x = 3,784,810.20/2,226.56
  6. Step 6: Final answer
    x = 1,699.85

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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.