Home / 3,924.75-5,413.40-3,331.19

Finding the Fourth Proportional to 3,924.75, 5,413.40 and 3,331.19

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Solution

The fourth proportional to 3,924.75, 5,413.40 and 3,331.19 is: 4,594.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,924.75 : 5,413.40 = 3,331.19 : x
  2. Step 2: Convert to fraction form
    3,924.75/5,413.40 = 3,331.19/x
  3. Step 3: Cross multiply
    3,924.75x = 5,413.40 × 3,331.19
  4. Step 4: Simplify right side
    3,924.75x = 18,033,073.32
  5. Step 5: Solve for x
    x = 18,033,073.32/3,924.75
  6. Step 6: Final answer
    x = 4,594.70

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Half scale
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Double scale
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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.