Home / 3,413.95-5,121.36-1,222.49

Finding the Fourth Proportional to 3,413.95, 5,121.36 and 1,222.49

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Solution

The fourth proportional to 3,413.95, 5,121.36 and 1,222.49 is: 1,833.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,413.95 : 5,121.36 = 1,222.49 : x
  2. Step 2: Convert to fraction form
    3,413.95/5,121.36 = 1,222.49/x
  3. Step 3: Cross multiply
    3,413.95x = 5,121.36 × 1,222.49
  4. Step 4: Simplify right side
    3,413.95x = 6,260,824.19
  5. Step 5: Solve for x
    x = 6,260,824.19/3,413.95
  6. Step 6: Final answer
    x = 1,833.90

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1.5x scale

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.