Home / 3,958.61-5,451.78-3,289.41

Finding the Fourth Proportional to 3,958.61, 5,451.78 and 3,289.41

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Solution

The fourth proportional to 3,958.61, 5,451.78 and 3,289.41 is: 4,530.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,958.61 : 5,451.78 = 3,289.41 : x
  2. Step 2: Convert to fraction form
    3,958.61/5,451.78 = 3,289.41/x
  3. Step 3: Cross multiply
    3,958.61x = 5,451.78 × 3,289.41
  4. Step 4: Simplify right side
    3,958.61x = 17,933,134.24
  5. Step 5: Solve for x
    x = 17,933,134.24/3,958.61
  6. Step 6: Final answer
    x = 4,530.17

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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.