Home / 5,413.88-8,121.05-1,716.38

Finding the Fourth Proportional to 5,413.88, 8,121.05 and 1,716.38

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Solution

The fourth proportional to 5,413.88, 8,121.05 and 1,716.38 is: 2,574.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,413.88 : 8,121.05 = 1,716.38 : x
  2. Step 2: Convert to fraction form
    5,413.88/8,121.05 = 1,716.38/x
  3. Step 3: Cross multiply
    5,413.88x = 8,121.05 × 1,716.38
  4. Step 4: Simplify right side
    5,413.88x = 13,938,807.80
  5. Step 5: Solve for x
    x = 13,938,807.80/5,413.88
  6. Step 6: Final answer
    x = 2,574.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.