Home / 5,413.09-8,121.08-1,715.38

Finding the Fourth Proportional to 5,413.09, 8,121.08 and 1,715.38

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Solution

The fourth proportional to 5,413.09, 8,121.08 and 1,715.38 is: 2,573.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,413.09 : 8,121.08 = 1,715.38 : x
  2. Step 2: Convert to fraction form
    5,413.09/8,121.08 = 1,715.38/x
  3. Step 3: Cross multiply
    5,413.09x = 8,121.08 × 1,715.38
  4. Step 4: Simplify right side
    5,413.09x = 13,930,738.21
  5. Step 5: Solve for x
    x = 13,930,738.21/5,413.09
  6. Step 6: Final answer
    x = 2,573.53

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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.