Home / 2,226.49-3,072.68-1,282.42

Finding the Fourth Proportional to 2,226.49, 3,072.68 and 1,282.42

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Solution

The fourth proportional to 2,226.49, 3,072.68 and 1,282.42 is: 1,769.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,226.49 : 3,072.68 = 1,282.42 : x
  2. Step 2: Convert to fraction form
    2,226.49/3,072.68 = 1,282.42/x
  3. Step 3: Cross multiply
    2,226.49x = 3,072.68 × 1,282.42
  4. Step 4: Simplify right side
    2,226.49x = 3,940,466.29
  5. Step 5: Solve for x
    x = 3,940,466.29/2,226.49
  6. Step 6: Final answer
    x = 1,769.81

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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.