Home / 5,413.89-8,120.91-1,716.15

Finding the Fourth Proportional to 5,413.89, 8,120.91 and 1,716.15

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Solution

The fourth proportional to 5,413.89, 8,120.91 and 1,716.15 is: 2,574.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,413.89 : 8,120.91 = 1,716.15 : x
  2. Step 2: Convert to fraction form
    5,413.89/8,120.91 = 1,716.15/x
  3. Step 3: Cross multiply
    5,413.89x = 8,120.91 × 1,716.15
  4. Step 4: Simplify right side
    5,413.89x = 13,936,699.70
  5. Step 5: Solve for x
    x = 13,936,699.70/5,413.89
  6. Step 6: Final answer
    x = 2,574.25

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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.