Home / 2,277.20-3,413.36-961.68

Finding the Fourth Proportional to 2,277.20, 3,413.36 and 961.68

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Solution

The fourth proportional to 2,277.20, 3,413.36 and 961.68 is: 1,441.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,277.20 : 3,413.36 = 961.68 : x
  2. Step 2: Convert to fraction form
    2,277.20/3,413.36 = 961.68/x
  3. Step 3: Cross multiply
    2,277.20x = 3,413.36 × 961.68
  4. Step 4: Simplify right side
    2,277.20x = 3,282,560.04
  5. Step 5: Solve for x
    x = 3,282,560.04/2,277.20
  6. Step 6: Final answer
    x = 1,441.49

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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.