Home / 3,413.06-4,709.69-1,920.95

Finding the Fourth Proportional to 3,413.06, 4,709.69 and 1,920.95

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Solution

The fourth proportional to 3,413.06, 4,709.69 and 1,920.95 is: 2,650.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,413.06 : 4,709.69 = 1,920.95 : x
  2. Step 2: Convert to fraction form
    3,413.06/4,709.69 = 1,920.95/x
  3. Step 3: Cross multiply
    3,413.06x = 4,709.69 × 1,920.95
  4. Step 4: Simplify right side
    3,413.06x = 9,047,079.01
  5. Step 5: Solve for x
    x = 9,047,079.01/3,413.06
  6. Step 6: Final answer
    x = 2,650.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.