Home / 4,251.91-6,380.77-1,478.56

Finding the Fourth Proportional to 4,251.91, 6,380.77 and 1,478.56

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Solution

The fourth proportional to 4,251.91, 6,380.77 and 1,478.56 is: 2,218.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,251.91 : 6,380.77 = 1,478.56 : x
  2. Step 2: Convert to fraction form
    4,251.91/6,380.77 = 1,478.56/x
  3. Step 3: Cross multiply
    4,251.91x = 6,380.77 × 1,478.56
  4. Step 4: Simplify right side
    4,251.91x = 9,434,322.45
  5. Step 5: Solve for x
    x = 9,434,322.45/4,251.91
  6. Step 6: Final answer
    x = 2,218.84

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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.