Home / 3,879.66-5,819.69-1,106.52

Finding the Fourth Proportional to 3,879.66, 5,819.69 and 1,106.52

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Solution

The fourth proportional to 3,879.66, 5,819.69 and 1,106.52 is: 1,659.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,879.66 : 5,819.69 = 1,106.52 : x
  2. Step 2: Convert to fraction form
    3,879.66/5,819.69 = 1,106.52/x
  3. Step 3: Cross multiply
    3,879.66x = 5,819.69 × 1,106.52
  4. Step 4: Simplify right side
    3,879.66x = 6,439,597.85
  5. Step 5: Solve for x
    x = 6,439,597.85/3,879.66
  6. Step 6: Final answer
    x = 1,659.84

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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.