Home / 2,226.70-3,072.88-1,231.98

Finding the Fourth Proportional to 2,226.70, 3,072.88 and 1,231.98

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Solution

The fourth proportional to 2,226.70, 3,072.88 and 1,231.98 is: 1,700.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,226.70 : 3,072.88 = 1,231.98 : x
  2. Step 2: Convert to fraction form
    2,226.70/3,072.88 = 1,231.98/x
  3. Step 3: Cross multiply
    2,226.70x = 3,072.88 × 1,231.98
  4. Step 4: Simplify right side
    2,226.70x = 3,785,728.16
  5. Step 5: Solve for x
    x = 3,785,728.16/2,226.70
  6. Step 6: Final answer
    x = 1,700.15

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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.