Home / 2,334.54-3,221.65-1,286.61

Finding the Fourth Proportional to 2,334.54, 3,221.65 and 1,286.61

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Solution

The fourth proportional to 2,334.54, 3,221.65 and 1,286.61 is: 1,775.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,334.54 : 3,221.65 = 1,286.61 : x
  2. Step 2: Convert to fraction form
    2,334.54/3,221.65 = 1,286.61/x
  3. Step 3: Cross multiply
    2,334.54x = 3,221.65 × 1,286.61
  4. Step 4: Simplify right side
    2,334.54x = 4,145,007.11
  5. Step 5: Solve for x
    x = 4,145,007.11/2,334.54
  6. Step 6: Final answer
    x = 1,775.51

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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.