Home / 5,187.29-7,157.64-3,198.49

Finding the Fourth Proportional to 5,187.29, 7,157.64 and 3,198.49

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Solution

The fourth proportional to 5,187.29, 7,157.64 and 3,198.49 is: 4,413.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,187.29 : 7,157.64 = 3,198.49 : x
  2. Step 2: Convert to fraction form
    5,187.29/7,157.64 = 3,198.49/x
  3. Step 3: Cross multiply
    5,187.29x = 7,157.64 × 3,198.49
  4. Step 4: Simplify right side
    5,187.29x = 22,893,625.07
  5. Step 5: Solve for x
    x = 22,893,625.07/5,187.29
  6. Step 6: Final answer
    x = 4,413.41

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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.