Home / 3,172.38-4,759.05-1,092.86

Finding the Fourth Proportional to 3,172.38, 4,759.05 and 1,092.86

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Solution

The fourth proportional to 3,172.38, 4,759.05 and 1,092.86 is: 1,639.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,172.38 : 4,759.05 = 1,092.86 : x
  2. Step 2: Convert to fraction form
    3,172.38/4,759.05 = 1,092.86/x
  3. Step 3: Cross multiply
    3,172.38x = 4,759.05 × 1,092.86
  4. Step 4: Simplify right side
    3,172.38x = 5,200,975.38
  5. Step 5: Solve for x
    x = 5,200,975.38/3,172.38
  6. Step 6: Final answer
    x = 1,639.46

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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.