Home / 5,413.61-8,121.04-2,126.27

Finding the Fourth Proportional to 5,413.61, 8,121.04 and 2,126.27

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Solution

The fourth proportional to 5,413.61, 8,121.04 and 2,126.27 is: 3,189.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,413.61 : 8,121.04 = 2,126.27 : x
  2. Step 2: Convert to fraction form
    5,413.61/8,121.04 = 2,126.27/x
  3. Step 3: Cross multiply
    5,413.61x = 8,121.04 × 2,126.27
  4. Step 4: Simplify right side
    5,413.61x = 17,267,538.71
  5. Step 5: Solve for x
    x = 17,267,538.71/5,413.61
  6. Step 6: Final answer
    x = 3,189.65

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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.