Home / 4,200.75-6,306.62-3,911.90

Finding the Fourth Proportional to 4,200.75, 6,306.62 and 3,911.90

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Solution

The fourth proportional to 4,200.75, 6,306.62 and 3,911.90 is: 5,872.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,200.75 : 6,306.62 = 3,911.90 : x
  2. Step 2: Convert to fraction form
    4,200.75/6,306.62 = 3,911.90/x
  3. Step 3: Cross multiply
    4,200.75x = 6,306.62 × 3,911.90
  4. Step 4: Simplify right side
    4,200.75x = 24,670,815.69
  5. Step 5: Solve for x
    x = 24,670,815.69/4,200.75
  6. Step 6: Final answer
    x = 5,872.95

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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.