Home / 2,198.59-3,299.60-1,159.20

Finding the Fourth Proportional to 2,198.59, 3,299.60 and 1,159.20

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Solution

The fourth proportional to 2,198.59, 3,299.60 and 1,159.20 is: 1,739.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,198.59 : 3,299.60 = 1,159.20 : x
  2. Step 2: Convert to fraction form
    2,198.59/3,299.60 = 1,159.20/x
  3. Step 3: Cross multiply
    2,198.59x = 3,299.60 × 1,159.20
  4. Step 4: Simplify right side
    2,198.59x = 3,824,899.22
  5. Step 5: Solve for x
    x = 3,824,899.22/2,198.59
  6. Step 6: Final answer
    x = 1,739.71

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1.5x scale

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.