Home / 5,413.13-8,120.55-2,081.24

Finding the Fourth Proportional to 5,413.13, 8,120.55 and 2,081.24

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Solution

The fourth proportional to 5,413.13, 8,120.55 and 2,081.24 is: 3,122.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,413.13 : 8,120.55 = 2,081.24 : x
  2. Step 2: Convert to fraction form
    5,413.13/8,120.55 = 2,081.24/x
  3. Step 3: Cross multiply
    5,413.13x = 8,120.55 × 2,081.24
  4. Step 4: Simplify right side
    5,413.13x = 16,900,839.25
  5. Step 5: Solve for x
    x = 16,900,839.25/5,413.13
  6. Step 6: Final answer
    x = 3,122.19

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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.