Home / 3,162.62-4,743.78-1,214.70

Finding the Fourth Proportional to 3,162.62, 4,743.78 and 1,214.70

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Solution

The fourth proportional to 3,162.62, 4,743.78 and 1,214.70 is: 1,821.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,162.62 : 4,743.78 = 1,214.70 : x
  2. Step 2: Convert to fraction form
    3,162.62/4,743.78 = 1,214.70/x
  3. Step 3: Cross multiply
    3,162.62x = 4,743.78 × 1,214.70
  4. Step 4: Simplify right side
    3,162.62x = 5,762,269.57
  5. Step 5: Solve for x
    x = 5,762,269.57/3,162.62
  6. Step 6: Final answer
    x = 1,821.99

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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.