Home / 2,861.82-4,293.68-1,219.75

Finding the Fourth Proportional to 2,861.82, 4,293.68 and 1,219.75

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Solution

The fourth proportional to 2,861.82, 4,293.68 and 1,219.75 is: 1,830.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,861.82 : 4,293.68 = 1,219.75 : x
  2. Step 2: Convert to fraction form
    2,861.82/4,293.68 = 1,219.75/x
  3. Step 3: Cross multiply
    2,861.82x = 4,293.68 × 1,219.75
  4. Step 4: Simplify right side
    2,861.82x = 5,237,199.35
  5. Step 5: Solve for x
    x = 5,237,199.35/2,861.82
  6. Step 6: Final answer
    x = 1,830.02

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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.