Home / 3,958.79-5,462.75-2,190.33

Finding the Fourth Proportional to 3,958.79, 5,462.75 and 2,190.33

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Solution

The fourth proportional to 3,958.79, 5,462.75 and 2,190.33 is: 3,022.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,958.79 : 5,462.75 = 2,190.33 : x
  2. Step 2: Convert to fraction form
    3,958.79/5,462.75 = 2,190.33/x
  3. Step 3: Cross multiply
    3,958.79x = 5,462.75 × 2,190.33
  4. Step 4: Simplify right side
    3,958.79x = 11,965,225.21
  5. Step 5: Solve for x
    x = 11,965,225.21/3,958.79
  6. Step 6: Final answer
    x = 3,022.45

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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.