Home / 5,413.69-8,121.53-1,716.85

Finding the Fourth Proportional to 5,413.69, 8,121.53 and 1,716.85

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Solution

The fourth proportional to 5,413.69, 8,121.53 and 1,716.85 is: 2,575.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,413.69 : 8,121.53 = 1,716.85 : x
  2. Step 2: Convert to fraction form
    5,413.69/8,121.53 = 1,716.85/x
  3. Step 3: Cross multiply
    5,413.69x = 8,121.53 × 1,716.85
  4. Step 4: Simplify right side
    5,413.69x = 13,943,448.78
  5. Step 5: Solve for x
    x = 13,943,448.78/5,413.69
  6. Step 6: Final answer
    x = 2,575.59

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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.