Home / 3,145.31-4,718.07-1,413.94

Finding the Fourth Proportional to 3,145.31, 4,718.07 and 1,413.94

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Solution

The fourth proportional to 3,145.31, 4,718.07 and 1,413.94 is: 2,120.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,145.31 : 4,718.07 = 1,413.94 : x
  2. Step 2: Convert to fraction form
    3,145.31/4,718.07 = 1,413.94/x
  3. Step 3: Cross multiply
    3,145.31x = 4,718.07 × 1,413.94
  4. Step 4: Simplify right side
    3,145.31x = 6,671,067.90
  5. Step 5: Solve for x
    x = 6,671,067.90/3,145.31
  6. Step 6: Final answer
    x = 2,120.96

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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.