Home / 3,197.86-4,413.45-1,939.12

Finding the Fourth Proportional to 3,197.86, 4,413.45 and 1,939.12

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Solution

The fourth proportional to 3,197.86, 4,413.45 and 1,939.12 is: 2,676.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,197.86 : 4,413.45 = 1,939.12 : x
  2. Step 2: Convert to fraction form
    3,197.86/4,413.45 = 1,939.12/x
  3. Step 3: Cross multiply
    3,197.86x = 4,413.45 × 1,939.12
  4. Step 4: Simplify right side
    3,197.86x = 8,558,209.16
  5. Step 5: Solve for x
    x = 8,558,209.16/3,197.86
  6. Step 6: Final answer
    x = 2,676.23

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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.