Home / 2,413.06-3,620.40-769.84

Finding the Fourth Proportional to 2,413.06, 3,620.40 and 769.84

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Solution

The fourth proportional to 2,413.06, 3,620.40 and 769.84 is: 1,155.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,413.06 : 3,620.40 = 769.84 : x
  2. Step 2: Convert to fraction form
    2,413.06/3,620.40 = 769.84/x
  3. Step 3: Cross multiply
    2,413.06x = 3,620.40 × 769.84
  4. Step 4: Simplify right side
    2,413.06x = 2,787,128.74
  5. Step 5: Solve for x
    x = 2,787,128.74/2,413.06
  6. Step 6: Final answer
    x = 1,155.02

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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.