Home / 3,958.88-5,462.78-2,190.24

Finding the Fourth Proportional to 3,958.88, 5,462.78 and 2,190.24

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Solution

The fourth proportional to 3,958.88, 5,462.78 and 2,190.24 is: 3,022.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,958.88 : 5,462.78 = 2,190.24 : x
  2. Step 2: Convert to fraction form
    3,958.88/5,462.78 = 2,190.24/x
  3. Step 3: Cross multiply
    3,958.88x = 5,462.78 × 2,190.24
  4. Step 4: Simplify right side
    3,958.88x = 11,964,788.32
  5. Step 5: Solve for x
    x = 11,964,788.32/3,958.88
  6. Step 6: Final answer
    x = 3,022.27

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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.