Home / 5,413.62-8,120.57-1,518.33

Finding the Fourth Proportional to 5,413.62, 8,120.57 and 1,518.33

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Solution

The fourth proportional to 5,413.62, 8,120.57 and 1,518.33 is: 2,277.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,413.62 : 8,120.57 = 1,518.33 : x
  2. Step 2: Convert to fraction form
    5,413.62/8,120.57 = 1,518.33/x
  3. Step 3: Cross multiply
    5,413.62x = 8,120.57 × 1,518.33
  4. Step 4: Simplify right side
    5,413.62x = 12,329,697.46
  5. Step 5: Solve for x
    x = 12,329,697.46/5,413.62
  6. Step 6: Final answer
    x = 2,277.53

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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.