Home / 6,928.20-10,388.93-3,416.85

Finding the Fourth Proportional to 6,928.20, 10,388.93 and 3,416.85

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Solution

The fourth proportional to 6,928.20, 10,388.93 and 3,416.85 is: 5,123.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,928.20 : 10,388.93 = 3,416.85 : x
  2. Step 2: Convert to fraction form
    6,928.20/10,388.93 = 3,416.85/x
  3. Step 3: Cross multiply
    6,928.20x = 10,388.93 × 3,416.85
  4. Step 4: Simplify right side
    6,928.20x = 35,497,398.39
  5. Step 5: Solve for x
    x = 35,497,398.39/6,928.20
  6. Step 6: Final answer
    x = 5,123.61

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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.