Home / 5,413.85-7,471.21-3,175.79

Finding the Fourth Proportional to 5,413.85, 7,471.21 and 3,175.79

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Solution

The fourth proportional to 5,413.85, 7,471.21 and 3,175.79 is: 4,382.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,413.85 : 7,471.21 = 3,175.79 : x
  2. Step 2: Convert to fraction form
    5,413.85/7,471.21 = 3,175.79/x
  3. Step 3: Cross multiply
    5,413.85x = 7,471.21 × 3,175.79
  4. Step 4: Simplify right side
    5,413.85x = 23,726,948.71
  5. Step 5: Solve for x
    x = 23,726,948.71/5,413.85
  6. Step 6: Final answer
    x = 4,382.64

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1.5x scale

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.