Home / 4,021.20-6,031.80-3,413.70

Finding the Fourth Proportional to 4,021.20, 6,031.80 and 3,413.70

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Solution

The fourth proportional to 4,021.20, 6,031.80 and 3,413.70 is: 5,120.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,021.20 : 6,031.80 = 3,413.70 : x
  2. Step 2: Convert to fraction form
    4,021.20/6,031.80 = 3,413.70/x
  3. Step 3: Cross multiply
    4,021.20x = 6,031.80 × 3,413.70
  4. Step 4: Simplify right side
    4,021.20x = 20,590,755.66
  5. Step 5: Solve for x
    x = 20,590,755.66/4,021.20
  6. Step 6: Final answer
    x = 5,120.55

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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.