Home / 3,163.44-4,355.64-2,690.40

Finding the Fourth Proportional to 3,163.44, 4,355.64 and 2,690.40

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Solution

The fourth proportional to 3,163.44, 4,355.64 and 2,690.40 is: 3,704.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,163.44 : 4,355.64 = 2,690.40 : x
  2. Step 2: Convert to fraction form
    3,163.44/4,355.64 = 2,690.40/x
  3. Step 3: Cross multiply
    3,163.44x = 4,355.64 × 2,690.40
  4. Step 4: Simplify right side
    3,163.44x = 11,718,413.86
  5. Step 5: Solve for x
    x = 11,718,413.86/3,163.44
  6. Step 6: Final answer
    x = 3,704.33

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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.