Home / 4,892.78-6,757.64-3,221.66

Finding the Fourth Proportional to 4,892.78, 6,757.64 and 3,221.66

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Solution

The fourth proportional to 4,892.78, 6,757.64 and 3,221.66 is: 4,449.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,892.78 : 6,757.64 = 3,221.66 : x
  2. Step 2: Convert to fraction form
    4,892.78/6,757.64 = 3,221.66/x
  3. Step 3: Cross multiply
    4,892.78x = 6,757.64 × 3,221.66
  4. Step 4: Simplify right side
    4,892.78x = 21,770,811.46
  5. Step 5: Solve for x
    x = 21,770,811.46/4,892.78
  6. Step 6: Final answer
    x = 4,449.58

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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.