Home / 2,226.21-3,072.02-1,231.46

Finding the Fourth Proportional to 2,226.21, 3,072.02 and 1,231.46

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Solution

The fourth proportional to 2,226.21, 3,072.02 and 1,231.46 is: 1,699.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,226.21 : 3,072.02 = 1,231.46 : x
  2. Step 2: Convert to fraction form
    2,226.21/3,072.02 = 1,231.46/x
  3. Step 3: Cross multiply
    2,226.21x = 3,072.02 × 1,231.46
  4. Step 4: Simplify right side
    2,226.21x = 3,783,069.75
  5. Step 5: Solve for x
    x = 3,783,069.75/2,226.21
  6. Step 6: Final answer
    x = 1,699.33

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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.