Home / 2,226.08-3,072.01-1,231.43

Finding the Fourth Proportional to 2,226.08, 3,072.01 and 1,231.43

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Solution

The fourth proportional to 2,226.08, 3,072.01 and 1,231.43 is: 1,699.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,226.08 : 3,072.01 = 1,231.43 : x
  2. Step 2: Convert to fraction form
    2,226.08/3,072.01 = 1,231.43/x
  3. Step 3: Cross multiply
    2,226.08x = 3,072.01 × 1,231.43
  4. Step 4: Simplify right side
    2,226.08x = 3,782,965.27
  5. Step 5: Solve for x
    x = 3,782,965.27/2,226.08
  6. Step 6: Final answer
    x = 1,699.38

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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.