Home / 5,413.85-8,115.92-2,818.61

Finding the Fourth Proportional to 5,413.85, 8,115.92 and 2,818.61

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Solution

The fourth proportional to 5,413.85, 8,115.92 and 2,818.61 is: 4,225.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,413.85 : 8,115.92 = 2,818.61 : x
  2. Step 2: Convert to fraction form
    5,413.85/8,115.92 = 2,818.61/x
  3. Step 3: Cross multiply
    5,413.85x = 8,115.92 × 2,818.61
  4. Step 4: Simplify right side
    5,413.85x = 22,875,599.18
  5. Step 5: Solve for x
    x = 22,875,599.18/5,413.85
  6. Step 6: Final answer
    x = 4,225.38

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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.