Home / 3,923.84-5,413.56-2,330.30

Finding the Fourth Proportional to 3,923.84, 5,413.56 and 2,330.30

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Solution

The fourth proportional to 3,923.84, 5,413.56 and 2,330.30 is: 3,215.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,923.84 : 5,413.56 = 2,330.30 : x
  2. Step 2: Convert to fraction form
    3,923.84/5,413.56 = 2,330.30/x
  3. Step 3: Cross multiply
    3,923.84x = 5,413.56 × 2,330.30
  4. Step 4: Simplify right side
    3,923.84x = 12,615,218.87
  5. Step 5: Solve for x
    x = 12,615,218.87/3,923.84
  6. Step 6: Final answer
    x = 3,215.02

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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.