Home / 3,911.19-5,399.78-3,473.79

Finding the Fourth Proportional to 3,911.19, 5,399.78 and 3,473.79

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Solution

The fourth proportional to 3,911.19, 5,399.78 and 3,473.79 is: 4,795.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,911.19 : 5,399.78 = 3,473.79 : x
  2. Step 2: Convert to fraction form
    3,911.19/5,399.78 = 3,473.79/x
  3. Step 3: Cross multiply
    3,911.19x = 5,399.78 × 3,473.79
  4. Step 4: Simplify right side
    3,911.19x = 18,757,684.40
  5. Step 5: Solve for x
    x = 18,757,684.40/3,911.19
  6. Step 6: Final answer
    x = 4,795.90

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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.