Home / 2,226.27-3,072.17-1,282.20

Finding the Fourth Proportional to 2,226.27, 3,072.17 and 1,282.20

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Solution

The fourth proportional to 2,226.27, 3,072.17 and 1,282.20 is: 1,769.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,226.27 : 3,072.17 = 1,282.20 : x
  2. Step 2: Convert to fraction form
    2,226.27/3,072.17 = 1,282.20/x
  3. Step 3: Cross multiply
    2,226.27x = 3,072.17 × 1,282.20
  4. Step 4: Simplify right side
    2,226.27x = 3,939,129.96
  5. Step 5: Solve for x
    x = 3,939,129.96/2,226.27
  6. Step 6: Final answer
    x = 1,769.39

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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.