Home / 1,198.14-1,651.74-1,181.70

Finding the Fourth Proportional to 1,198.14, 1,651.74 and 1,181.70

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Solution

The fourth proportional to 1,198.14, 1,651.74 and 1,181.70 is: 1,629.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,198.14 : 1,651.74 = 1,181.70 : x
  2. Step 2: Convert to fraction form
    1,198.14/1,651.74 = 1,181.70/x
  3. Step 3: Cross multiply
    1,198.14x = 1,651.74 × 1,181.70
  4. Step 4: Simplify right side
    1,198.14x = 1,951,861.16
  5. Step 5: Solve for x
    x = 1,951,861.16/1,198.14
  6. Step 6: Final answer
    x = 1,629.08

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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.