Home / 5,413.60-8,127.72-3,469.60

Finding the Fourth Proportional to 5,413.60, 8,127.72 and 3,469.60

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Solution

The fourth proportional to 5,413.60, 8,127.72 and 3,469.60 is: 5,209.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,413.60 : 8,127.72 = 3,469.60 : x
  2. Step 2: Convert to fraction form
    5,413.60/8,127.72 = 3,469.60/x
  3. Step 3: Cross multiply
    5,413.60x = 8,127.72 × 3,469.60
  4. Step 4: Simplify right side
    5,413.60x = 28,199,937.31
  5. Step 5: Solve for x
    x = 28,199,937.31/5,413.60
  6. Step 6: Final answer
    x = 5,209.09

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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.