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Finding the Fourth Proportional to 5,352.60, 8,028.90 and 3,413.40

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Solution

The fourth proportional to 5,352.60, 8,028.90 and 3,413.40 is: 5,120.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,352.60 : 8,028.90 = 3,413.40 : x
  2. Step 2: Convert to fraction form
    5,352.60/8,028.90 = 3,413.40/x
  3. Step 3: Cross multiply
    5,352.60x = 8,028.90 × 3,413.40
  4. Step 4: Simplify right side
    5,352.60x = 27,405,847.26
  5. Step 5: Solve for x
    x = 27,405,847.26/5,352.60
  6. Step 6: Final answer
    x = 5,120.10

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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.