Home / 2,334.66-3,221.84-1,286.72

Finding the Fourth Proportional to 2,334.66, 3,221.84 and 1,286.72

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Solution

The fourth proportional to 2,334.66, 3,221.84 and 1,286.72 is: 1,775.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,334.66 : 3,221.84 = 1,286.72 : x
  2. Step 2: Convert to fraction form
    2,334.66/3,221.84 = 1,286.72/x
  3. Step 3: Cross multiply
    2,334.66x = 3,221.84 × 1,286.72
  4. Step 4: Simplify right side
    2,334.66x = 4,145,605.15
  5. Step 5: Solve for x
    x = 4,145,605.15/2,334.66
  6. Step 6: Final answer
    x = 1,775.68

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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.