Home / 5,413.62-8,120.66-1,715.77

Finding the Fourth Proportional to 5,413.62, 8,120.66 and 1,715.77

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Solution

The fourth proportional to 5,413.62, 8,120.66 and 1,715.77 is: 2,573.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,413.62 : 8,120.66 = 1,715.77 : x
  2. Step 2: Convert to fraction form
    5,413.62/8,120.66 = 1,715.77/x
  3. Step 3: Cross multiply
    5,413.62x = 8,120.66 × 1,715.77
  4. Step 4: Simplify right side
    5,413.62x = 13,933,184.81
  5. Step 5: Solve for x
    x = 13,933,184.81/5,413.62
  6. Step 6: Final answer
    x = 2,573.73

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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.