Home / 3,922.47-5,413.77-2,329.47

Finding the Fourth Proportional to 3,922.47, 5,413.77 and 2,329.47

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Solution

The fourth proportional to 3,922.47, 5,413.77 and 2,329.47 is: 3,215.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,922.47 : 5,413.77 = 2,329.47 : x
  2. Step 2: Convert to fraction form
    3,922.47/5,413.77 = 2,329.47/x
  3. Step 3: Cross multiply
    3,922.47x = 5,413.77 × 2,329.47
  4. Step 4: Simplify right side
    3,922.47x = 12,611,214.80
  5. Step 5: Solve for x
    x = 12,611,214.80/3,922.47
  6. Step 6: Final answer
    x = 3,215.12

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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.