Home / 1,212.57-1,819.26-481.95

Finding the Fourth Proportional to 1,212.57, 1,819.26 and 481.95

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Solution

The fourth proportional to 1,212.57, 1,819.26 and 481.95 is: 723.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212.57 : 1,819.26 = 481.95 : x
  2. Step 2: Convert to fraction form
    1,212.57/1,819.26 = 481.95/x
  3. Step 3: Cross multiply
    1,212.57x = 1,819.26 × 481.95
  4. Step 4: Simplify right side
    1,212.57x = 876,792.36
  5. Step 5: Solve for x
    x = 876,792.36/1,212.57
  6. Step 6: Final answer
    x = 723.09

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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.