Home / 3,923.64-5,413.40-2,330.54

Finding the Fourth Proportional to 3,923.64, 5,413.40 and 2,330.54

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Solution

The fourth proportional to 3,923.64, 5,413.40 and 2,330.54 is: 3,215.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,923.64 : 5,413.40 = 2,330.54 : x
  2. Step 2: Convert to fraction form
    3,923.64/5,413.40 = 2,330.54/x
  3. Step 3: Cross multiply
    3,923.64x = 5,413.40 × 2,330.54
  4. Step 4: Simplify right side
    3,923.64x = 12,616,135.56
  5. Step 5: Solve for x
    x = 12,616,135.56/3,923.64
  6. Step 6: Final answer
    x = 3,215.42

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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.