Home / 3,958.60-5,462.88-2,190.22

Finding the Fourth Proportional to 3,958.60, 5,462.88 and 2,190.22

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Solution

The fourth proportional to 3,958.60, 5,462.88 and 2,190.22 is: 3,022.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,958.60 : 5,462.88 = 2,190.22 : x
  2. Step 2: Convert to fraction form
    3,958.60/5,462.88 = 2,190.22/x
  3. Step 3: Cross multiply
    3,958.60x = 5,462.88 × 2,190.22
  4. Step 4: Simplify right side
    3,958.60x = 11,964,909.03
  5. Step 5: Solve for x
    x = 11,964,909.03/3,958.60
  6. Step 6: Final answer
    x = 3,022.51

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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.