Home / 4,299.20-6,429.36-3,311.84

Finding the Fourth Proportional to 4,299.20, 6,429.36 and 3,311.84

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Solution

The fourth proportional to 4,299.20, 6,429.36 and 3,311.84 is: 4,952.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,299.20 : 6,429.36 = 3,311.84 : x
  2. Step 2: Convert to fraction form
    4,299.20/6,429.36 = 3,311.84/x
  3. Step 3: Cross multiply
    4,299.20x = 6,429.36 × 3,311.84
  4. Step 4: Simplify right side
    4,299.20x = 21,293,011.62
  5. Step 5: Solve for x
    x = 21,293,011.62/4,299.20
  6. Step 6: Final answer
    x = 4,952.78

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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.