Home / 4,274.43-6,399.84-2,189.95

Finding the Fourth Proportional to 4,274.43, 6,399.84 and 2,189.95

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Solution

The fourth proportional to 4,274.43, 6,399.84 and 2,189.95 is: 3,278.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,274.43 : 6,399.84 = 2,189.95 : x
  2. Step 2: Convert to fraction form
    4,274.43/6,399.84 = 2,189.95/x
  3. Step 3: Cross multiply
    4,274.43x = 6,399.84 × 2,189.95
  4. Step 4: Simplify right side
    4,274.43x = 14,015,329.61
  5. Step 5: Solve for x
    x = 14,015,329.61/4,274.43
  6. Step 6: Final answer
    x = 3,278.88

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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.