Home / 3,311.19-4,966.78-1,231.71

Finding the Fourth Proportional to 3,311.19, 4,966.78 and 1,231.71

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Solution

The fourth proportional to 3,311.19, 4,966.78 and 1,231.71 is: 1,847.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,311.19 : 4,966.78 = 1,231.71 : x
  2. Step 2: Convert to fraction form
    3,311.19/4,966.78 = 1,231.71/x
  3. Step 3: Cross multiply
    3,311.19x = 4,966.78 × 1,231.71
  4. Step 4: Simplify right side
    3,311.19x = 6,117,632.59
  5. Step 5: Solve for x
    x = 6,117,632.59/3,311.19
  6. Step 6: Final answer
    x = 1,847.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.