Home / 3,413.19-5,119.89-1,333.11

Finding the Fourth Proportional to 3,413.19, 5,119.89 and 1,333.11

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Solution

The fourth proportional to 3,413.19, 5,119.89 and 1,333.11 is: 1,999.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,413.19 : 5,119.89 = 1,333.11 : x
  2. Step 2: Convert to fraction form
    3,413.19/5,119.89 = 1,333.11/x
  3. Step 3: Cross multiply
    3,413.19x = 5,119.89 × 1,333.11
  4. Step 4: Simplify right side
    3,413.19x = 6,825,376.56
  5. Step 5: Solve for x
    x = 6,825,376.56/3,413.19
  6. Step 6: Final answer
    x = 1,999.71

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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.