Home / 6,917.83-10,378.67-3,408.86

Finding the Fourth Proportional to 6,917.83, 10,378.67 and 3,408.86

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Solution

The fourth proportional to 6,917.83, 10,378.67 and 3,408.86 is: 5,114.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,917.83 : 10,378.67 = 3,408.86 : x
  2. Step 2: Convert to fraction form
    6,917.83/10,378.67 = 3,408.86/x
  3. Step 3: Cross multiply
    6,917.83x = 10,378.67 × 3,408.86
  4. Step 4: Simplify right side
    6,917.83x = 35,379,441.92
  5. Step 5: Solve for x
    x = 35,379,441.92/6,917.83
  6. Step 6: Final answer
    x = 5,114.24

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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.