Home / 3,911.94-5,400.81-3,474.54

Finding the Fourth Proportional to 3,911.94, 5,400.81 and 3,474.54

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Solution

The fourth proportional to 3,911.94, 5,400.81 and 3,474.54 is: 4,796.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,911.94 : 5,400.81 = 3,474.54 : x
  2. Step 2: Convert to fraction form
    3,911.94/5,400.81 = 3,474.54/x
  3. Step 3: Cross multiply
    3,911.94x = 5,400.81 × 3,474.54
  4. Step 4: Simplify right side
    3,911.94x = 18,765,330.38
  5. Step 5: Solve for x
    x = 18,765,330.38/3,911.94
  6. Step 6: Final answer
    x = 4,796.94

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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.