Home / 6,879.36-10,315.17-2,198.28

Finding the Fourth Proportional to 6,879.36, 10,315.17 and 2,198.28

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Solution

The fourth proportional to 6,879.36, 10,315.17 and 2,198.28 is: 3,296.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,879.36 : 10,315.17 = 2,198.28 : x
  2. Step 2: Convert to fraction form
    6,879.36/10,315.17 = 2,198.28/x
  3. Step 3: Cross multiply
    6,879.36x = 10,315.17 × 2,198.28
  4. Step 4: Simplify right side
    6,879.36x = 22,675,631.91
  5. Step 5: Solve for x
    x = 22,675,631.91/6,879.36
  6. Step 6: Final answer
    x = 3,296.18

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1.5x scale

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.