Home / 3,225.86-4,838.78-2,129.96

Finding the Fourth Proportional to 3,225.86, 4,838.78 and 2,129.96

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Solution

The fourth proportional to 3,225.86, 4,838.78 and 2,129.96 is: 3,194.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,225.86 : 4,838.78 = 2,129.96 : x
  2. Step 2: Convert to fraction form
    3,225.86/4,838.78 = 2,129.96/x
  3. Step 3: Cross multiply
    3,225.86x = 4,838.78 × 2,129.96
  4. Step 4: Simplify right side
    3,225.86x = 10,306,413.29
  5. Step 5: Solve for x
    x = 10,306,413.29/3,225.86
  6. Step 6: Final answer
    x = 3,194.94

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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.