Home / 3,198.43-4,413.88-1,782.08

Finding the Fourth Proportional to 3,198.43, 4,413.88 and 1,782.08

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Solution

The fourth proportional to 3,198.43, 4,413.88 and 1,782.08 is: 2,459.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,198.43 : 4,413.88 = 1,782.08 : x
  2. Step 2: Convert to fraction form
    3,198.43/4,413.88 = 1,782.08/x
  3. Step 3: Cross multiply
    3,198.43x = 4,413.88 × 1,782.08
  4. Step 4: Simplify right side
    3,198.43x = 7,865,887.27
  5. Step 5: Solve for x
    x = 7,865,887.27/3,198.43
  6. Step 6: Final answer
    x = 2,459.30

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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.