Home / 2,413.28-3,620.23-681.91

Finding the Fourth Proportional to 2,413.28, 3,620.23 and 681.91

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Solution

The fourth proportional to 2,413.28, 3,620.23 and 681.91 is: 1,022.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,413.28 : 3,620.23 = 681.91 : x
  2. Step 2: Convert to fraction form
    2,413.28/3,620.23 = 681.91/x
  3. Step 3: Cross multiply
    2,413.28x = 3,620.23 × 681.91
  4. Step 4: Simplify right side
    2,413.28x = 2,468,671.04
  5. Step 5: Solve for x
    x = 2,468,671.04/2,413.28
  6. Step 6: Final answer
    x = 1,022.95

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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.