Home / 3,413.60-5,115.60-2,529.20

Finding the Fourth Proportional to 3,413.60, 5,115.60 and 2,529.20

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Solution

The fourth proportional to 3,413.60, 5,115.60 and 2,529.20 is: 3,790.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,413.60 : 5,115.60 = 2,529.20 : x
  2. Step 2: Convert to fraction form
    3,413.60/5,115.60 = 2,529.20/x
  3. Step 3: Cross multiply
    3,413.60x = 5,115.60 × 2,529.20
  4. Step 4: Simplify right side
    3,413.60x = 12,938,375.52
  5. Step 5: Solve for x
    x = 12,938,375.52/3,413.60
  6. Step 6: Final answer
    x = 3,790.24

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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.