Home / 3,198.21-4,413.52-1,871.66

Finding the Fourth Proportional to 3,198.21, 4,413.52 and 1,871.66

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Solution

The fourth proportional to 3,198.21, 4,413.52 and 1,871.66 is: 2,582.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,198.21 : 4,413.52 = 1,871.66 : x
  2. Step 2: Convert to fraction form
    3,198.21/4,413.52 = 1,871.66/x
  3. Step 3: Cross multiply
    3,198.21x = 4,413.52 × 1,871.66
  4. Step 4: Simplify right side
    3,198.21x = 8,260,608.84
  5. Step 5: Solve for x
    x = 8,260,608.84/3,198.21
  6. Step 6: Final answer
    x = 2,582.89

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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.