Home / 2,334.67-3,221.76-1,286.71

Finding the Fourth Proportional to 2,334.67, 3,221.76 and 1,286.71

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Solution

The fourth proportional to 2,334.67, 3,221.76 and 1,286.71 is: 1,775.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,334.67 : 3,221.76 = 1,286.71 : x
  2. Step 2: Convert to fraction form
    2,334.67/3,221.76 = 1,286.71/x
  3. Step 3: Cross multiply
    2,334.67x = 3,221.76 × 1,286.71
  4. Step 4: Simplify right side
    2,334.67x = 4,145,470.81
  5. Step 5: Solve for x
    x = 4,145,470.81/2,334.67
  6. Step 6: Final answer
    x = 1,775.61

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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.