Home / 2,226.16-3,072.11-1,231.47

Finding the Fourth Proportional to 2,226.16, 3,072.11 and 1,231.47

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Solution

The fourth proportional to 2,226.16, 3,072.11 and 1,231.47 is: 1,699.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,226.16 : 3,072.11 = 1,231.47 : x
  2. Step 2: Convert to fraction form
    2,226.16/3,072.11 = 1,231.47/x
  3. Step 3: Cross multiply
    2,226.16x = 3,072.11 × 1,231.47
  4. Step 4: Simplify right side
    2,226.16x = 3,783,225.90
  5. Step 5: Solve for x
    x = 3,783,225.90/2,226.16
  6. Step 6: Final answer
    x = 1,699.44

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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.