Home / 1,861.96-2,568.04-1,198.88

Finding the Fourth Proportional to 1,861.96, 2,568.04 and 1,198.88

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Solution

The fourth proportional to 1,861.96, 2,568.04 and 1,198.88 is: 1,653.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,861.96 : 2,568.04 = 1,198.88 : x
  2. Step 2: Convert to fraction form
    1,861.96/2,568.04 = 1,198.88/x
  3. Step 3: Cross multiply
    1,861.96x = 2,568.04 × 1,198.88
  4. Step 4: Simplify right side
    1,861.96x = 3,078,771.80
  5. Step 5: Solve for x
    x = 3,078,771.80/1,861.96
  6. Step 6: Final answer
    x = 1,653.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.