Home / 1,214.06-1,819.83-628.34

Finding the Fourth Proportional to 1,214.06, 1,819.83 and 628.34

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Solution

The fourth proportional to 1,214.06, 1,819.83 and 628.34 is: 941.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,214.06 : 1,819.83 = 628.34 : x
  2. Step 2: Convert to fraction form
    1,214.06/1,819.83 = 628.34/x
  3. Step 3: Cross multiply
    1,214.06x = 1,819.83 × 628.34
  4. Step 4: Simplify right side
    1,214.06x = 1,143,471.98
  5. Step 5: Solve for x
    x = 1,143,471.98/1,214.06
  6. Step 6: Final answer
    x = 941.86

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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.