Home / 7,413.60-11,119.68-1,941.60

Finding the Fourth Proportional to 7,413.60, 11,119.68 and 1,941.60

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Solution

The fourth proportional to 7,413.60, 11,119.68 and 1,941.60 is: 2,912.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,413.60 : 11,119.68 = 1,941.60 : x
  2. Step 2: Convert to fraction form
    7,413.60/11,119.68 = 1,941.60/x
  3. Step 3: Cross multiply
    7,413.60x = 11,119.68 × 1,941.60
  4. Step 4: Simplify right side
    7,413.60x = 21,589,970.69
  5. Step 5: Solve for x
    x = 21,589,970.69/7,413.60
  6. Step 6: Final answer
    x = 2,912.21

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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.