Home / 4,212.18-6,318.99-1,289.82

Finding the Fourth Proportional to 4,212.18, 6,318.99 and 1,289.82

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Solution

The fourth proportional to 4,212.18, 6,318.99 and 1,289.82 is: 1,934.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,212.18 : 6,318.99 = 1,289.82 : x
  2. Step 2: Convert to fraction form
    4,212.18/6,318.99 = 1,289.82/x
  3. Step 3: Cross multiply
    4,212.18x = 6,318.99 × 1,289.82
  4. Step 4: Simplify right side
    4,212.18x = 8,150,359.68
  5. Step 5: Solve for x
    x = 8,150,359.68/4,212.18
  6. Step 6: Final answer
    x = 1,934.95

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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.