Home / 1,213.18-1,819.62-335.75

Finding the Fourth Proportional to 1,213.18, 1,819.62 and 335.75

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Solution

The fourth proportional to 1,213.18, 1,819.62 and 335.75 is: 503.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,213.18 : 1,819.62 = 335.75 : x
  2. Step 2: Convert to fraction form
    1,213.18/1,819.62 = 335.75/x
  3. Step 3: Cross multiply
    1,213.18x = 1,819.62 × 335.75
  4. Step 4: Simplify right side
    1,213.18x = 610,928.32
  5. Step 5: Solve for x
    x = 610,928.32/1,213.18
  6. Step 6: Final answer
    x = 503.58

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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.