Home / 3,413.76-5,121.28-1,104.96

Finding the Fourth Proportional to 3,413.76, 5,121.28 and 1,104.96

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Solution

The fourth proportional to 3,413.76, 5,121.28 and 1,104.96 is: 1,657.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,413.76 : 5,121.28 = 1,104.96 : x
  2. Step 2: Convert to fraction form
    3,413.76/5,121.28 = 1,104.96/x
  3. Step 3: Cross multiply
    3,413.76x = 5,121.28 × 1,104.96
  4. Step 4: Simplify right side
    3,413.76x = 5,658,809.55
  5. Step 5: Solve for x
    x = 5,658,809.55/3,413.76
  6. Step 6: Final answer
    x = 1,657.65

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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.