Home / 3,413.61-4,712.27-2,171.61

Finding the Fourth Proportional to 3,413.61, 4,712.27 and 2,171.61

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Solution

The fourth proportional to 3,413.61, 4,712.27 and 2,171.61 is: 2,997.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,413.61 : 4,712.27 = 2,171.61 : x
  2. Step 2: Convert to fraction form
    3,413.61/4,712.27 = 2,171.61/x
  3. Step 3: Cross multiply
    3,413.61x = 4,712.27 × 2,171.61
  4. Step 4: Simplify right side
    3,413.61x = 10,233,201.80
  5. Step 5: Solve for x
    x = 10,233,201.80/3,413.61
  6. Step 6: Final answer
    x = 2,997.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.