Home / 4,101.78-6,149.18-1,879.88

Finding the Fourth Proportional to 4,101.78, 6,149.18 and 1,879.88

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Solution

The fourth proportional to 4,101.78, 6,149.18 and 1,879.88 is: 2,818.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,101.78 : 6,149.18 = 1,879.88 : x
  2. Step 2: Convert to fraction form
    4,101.78/6,149.18 = 1,879.88/x
  3. Step 3: Cross multiply
    4,101.78x = 6,149.18 × 1,879.88
  4. Step 4: Simplify right side
    4,101.78x = 11,559,694.45
  5. Step 5: Solve for x
    x = 11,559,694.45/4,101.78
  6. Step 6: Final answer
    x = 2,818.21

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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.