Home / 3,238.02-4,468.41-1,911.78

Finding the Fourth Proportional to 3,238.02, 4,468.41 and 1,911.78

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Solution

The fourth proportional to 3,238.02, 4,468.41 and 1,911.78 is: 2,638.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,238.02 : 4,468.41 = 1,911.78 : x
  2. Step 2: Convert to fraction form
    3,238.02/4,468.41 = 1,911.78/x
  3. Step 3: Cross multiply
    3,238.02x = 4,468.41 × 1,911.78
  4. Step 4: Simplify right side
    3,238.02x = 8,542,616.87
  5. Step 5: Solve for x
    x = 8,542,616.87/3,238.02
  6. Step 6: Final answer
    x = 2,638.22

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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.