Home / 2,334.39-3,221.64-1,286.64

Finding the Fourth Proportional to 2,334.39, 3,221.64 and 1,286.64

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Solution

The fourth proportional to 2,334.39, 3,221.64 and 1,286.64 is: 1,775.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,334.39 : 3,221.64 = 1,286.64 : x
  2. Step 2: Convert to fraction form
    2,334.39/3,221.64 = 1,286.64/x
  3. Step 3: Cross multiply
    2,334.39x = 3,221.64 × 1,286.64
  4. Step 4: Simplify right side
    2,334.39x = 4,145,090.89
  5. Step 5: Solve for x
    x = 4,145,090.89/2,334.39
  6. Step 6: Final answer
    x = 1,775.66

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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.