Home / 6,879.17-10,309.03-3,418.85

Finding the Fourth Proportional to 6,879.17, 10,309.03 and 3,418.85

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Solution

The fourth proportional to 6,879.17, 10,309.03 and 3,418.85 is: 5,123.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,879.17 : 10,309.03 = 3,418.85 : x
  2. Step 2: Convert to fraction form
    6,879.17/10,309.03 = 3,418.85/x
  3. Step 3: Cross multiply
    6,879.17x = 10,309.03 × 3,418.85
  4. Step 4: Simplify right side
    6,879.17x = 35,245,027.22
  5. Step 5: Solve for x
    x = 35,245,027.22/6,879.17
  6. Step 6: Final answer
    x = 5,123.44

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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.