Home / 3,175.74-4,385.07-1,998.54

Finding the Fourth Proportional to 3,175.74, 4,385.07 and 1,998.54

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Solution

The fourth proportional to 3,175.74, 4,385.07 and 1,998.54 is: 2,759.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,175.74 : 4,385.07 = 1,998.54 : x
  2. Step 2: Convert to fraction form
    3,175.74/4,385.07 = 1,998.54/x
  3. Step 3: Cross multiply
    3,175.74x = 4,385.07 × 1,998.54
  4. Step 4: Simplify right side
    3,175.74x = 8,763,737.80
  5. Step 5: Solve for x
    x = 8,763,737.80/3,175.74
  6. Step 6: Final answer
    x = 2,759.59

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1.5x scale

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.