Home / 3,608.78-5,413.19-1,143.60

Finding the Fourth Proportional to 3,608.78, 5,413.19 and 1,143.60

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Solution

The fourth proportional to 3,608.78, 5,413.19 and 1,143.60 is: 1,715.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,608.78 : 5,413.19 = 1,143.60 : x
  2. Step 2: Convert to fraction form
    3,608.78/5,413.19 = 1,143.60/x
  3. Step 3: Cross multiply
    3,608.78x = 5,413.19 × 1,143.60
  4. Step 4: Simplify right side
    3,608.78x = 6,190,518.37
  5. Step 5: Solve for x
    x = 6,190,518.37/3,608.78
  6. Step 6: Final answer
    x = 1,715.41

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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.