Home / 2,133.30-3,198.74-1,092.45

Finding the Fourth Proportional to 2,133.30, 3,198.74 and 1,092.45

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Solution

The fourth proportional to 2,133.30, 3,198.74 and 1,092.45 is: 1,638.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,133.30 : 3,198.74 = 1,092.45 : x
  2. Step 2: Convert to fraction form
    2,133.30/3,198.74 = 1,092.45/x
  3. Step 3: Cross multiply
    2,133.30x = 3,198.74 × 1,092.45
  4. Step 4: Simplify right side
    2,133.30x = 3,494,458.05
  5. Step 5: Solve for x
    x = 3,494,458.05/2,133.30
  6. Step 6: Final answer
    x = 1,638.05

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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.