Home / 1,337.24-1,999.08-1,198.12

Finding the Fourth Proportional to 1,337.24, 1,999.08 and 1,198.12

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Solution

The fourth proportional to 1,337.24, 1,999.08 and 1,198.12 is: 1,791.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,337.24 : 1,999.08 = 1,198.12 : x
  2. Step 2: Convert to fraction form
    1,337.24/1,999.08 = 1,198.12/x
  3. Step 3: Cross multiply
    1,337.24x = 1,999.08 × 1,198.12
  4. Step 4: Simplify right side
    1,337.24x = 2,395,137.73
  5. Step 5: Solve for x
    x = 2,395,137.73/1,337.24
  6. Step 6: Final answer
    x = 1,791.11

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.