Home / 3,413.87-5,120.55-1,333.48

Finding the Fourth Proportional to 3,413.87, 5,120.55 and 1,333.48

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Solution

The fourth proportional to 3,413.87, 5,120.55 and 1,333.48 is: 2,000.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,413.87 : 5,120.55 = 1,333.48 : x
  2. Step 2: Convert to fraction form
    3,413.87/5,120.55 = 1,333.48/x
  3. Step 3: Cross multiply
    3,413.87x = 5,120.55 × 1,333.48
  4. Step 4: Simplify right side
    3,413.87x = 6,828,151.01
  5. Step 5: Solve for x
    x = 6,828,151.01/3,413.87
  6. Step 6: Final answer
    x = 2,000.12

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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.