Home / 3,238.59-4,469.96-1,911.75

Finding the Fourth Proportional to 3,238.59, 4,469.96 and 1,911.75

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Solution

The fourth proportional to 3,238.59, 4,469.96 and 1,911.75 is: 2,638.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,238.59 : 4,469.96 = 1,911.75 : x
  2. Step 2: Convert to fraction form
    3,238.59/4,469.96 = 1,911.75/x
  3. Step 3: Cross multiply
    3,238.59x = 4,469.96 × 1,911.75
  4. Step 4: Simplify right side
    3,238.59x = 8,545,436.47
  5. Step 5: Solve for x
    x = 8,545,436.47/3,238.59
  6. Step 6: Final answer
    x = 2,638.63

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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.