Home / 3,231.70-4,461.78-2,236.61

Finding the Fourth Proportional to 3,231.70, 4,461.78 and 2,236.61

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Solution

The fourth proportional to 3,231.70, 4,461.78 and 2,236.61 is: 3,087.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,231.70 : 4,461.78 = 2,236.61 : x
  2. Step 2: Convert to fraction form
    3,231.70/4,461.78 = 2,236.61/x
  3. Step 3: Cross multiply
    3,231.70x = 4,461.78 × 2,236.61
  4. Step 4: Simplify right side
    3,231.70x = 9,979,281.31
  5. Step 5: Solve for x
    x = 9,979,281.31/3,231.70
  6. Step 6: Final answer
    x = 3,087.94

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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.