Home / 4,198.80-6,298.48-1,279.12

Finding the Fourth Proportional to 4,198.80, 6,298.48 and 1,279.12

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Solution

The fourth proportional to 4,198.80, 6,298.48 and 1,279.12 is: 1,918.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,198.80 : 6,298.48 = 1,279.12 : x
  2. Step 2: Convert to fraction form
    4,198.80/6,298.48 = 1,279.12/x
  3. Step 3: Cross multiply
    4,198.80x = 6,298.48 × 1,279.12
  4. Step 4: Simplify right side
    4,198.80x = 8,056,511.74
  5. Step 5: Solve for x
    x = 8,056,511.74/4,198.80
  6. Step 6: Final answer
    x = 1,918.77

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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.