Home / 4,274.88-6,403.68-3,398.76

Finding the Fourth Proportional to 4,274.88, 6,403.68 and 3,398.76

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Solution

The fourth proportional to 4,274.88, 6,403.68 and 3,398.76 is: 5,091.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,274.88 : 6,403.68 = 3,398.76 : x
  2. Step 2: Convert to fraction form
    4,274.88/6,403.68 = 3,398.76/x
  3. Step 3: Cross multiply
    4,274.88x = 6,403.68 × 3,398.76
  4. Step 4: Simplify right side
    4,274.88x = 21,764,571.44
  5. Step 5: Solve for x
    x = 21,764,571.44/4,274.88
  6. Step 6: Final answer
    x = 5,091.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.