Home / 2,226.18-3,072.06-1,231.47

Finding the Fourth Proportional to 2,226.18, 3,072.06 and 1,231.47

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Solution

The fourth proportional to 2,226.18, 3,072.06 and 1,231.47 is: 1,699.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,226.18 : 3,072.06 = 1,231.47 : x
  2. Step 2: Convert to fraction form
    2,226.18/3,072.06 = 1,231.47/x
  3. Step 3: Cross multiply
    2,226.18x = 3,072.06 × 1,231.47
  4. Step 4: Simplify right side
    2,226.18x = 3,783,149.73
  5. Step 5: Solve for x
    x = 3,783,149.73/2,226.18
  6. Step 6: Final answer
    x = 1,699.39

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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.