Home / 5,413.50-8,120.25-1,716.12

Finding the Fourth Proportional to 5,413.50, 8,120.25 and 1,716.12

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Solution

The fourth proportional to 5,413.50, 8,120.25 and 1,716.12 is: 2,574.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,413.50 : 8,120.25 = 1,716.12 : x
  2. Step 2: Convert to fraction form
    5,413.50/8,120.25 = 1,716.12/x
  3. Step 3: Cross multiply
    5,413.50x = 8,120.25 × 1,716.12
  4. Step 4: Simplify right side
    5,413.50x = 13,935,323.43
  5. Step 5: Solve for x
    x = 13,935,323.43/5,413.50
  6. Step 6: Final answer
    x = 2,574.18

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Half scale
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Double scale
Find fourth proportional to 5,414.50, 8,121.75 and 1,717.12
Similar ratio
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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.