Home / 2,334.42-3,221.51-1,286.47

Finding the Fourth Proportional to 2,334.42, 3,221.51 and 1,286.47

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Solution

The fourth proportional to 2,334.42, 3,221.51 and 1,286.47 is: 1,775.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,334.42 : 3,221.51 = 1,286.47 : x
  2. Step 2: Convert to fraction form
    2,334.42/3,221.51 = 1,286.47/x
  3. Step 3: Cross multiply
    2,334.42x = 3,221.51 × 1,286.47
  4. Step 4: Simplify right side
    2,334.42x = 4,144,375.97
  5. Step 5: Solve for x
    x = 4,144,375.97/2,334.42
  6. Step 6: Final answer
    x = 1,775.33

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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.