Home / 3,178.62-4,412.92-3,083.58

Finding the Fourth Proportional to 3,178.62, 4,412.92 and 3,083.58

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Solution

The fourth proportional to 3,178.62, 4,412.92 and 3,083.58 is: 4,280.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,178.62 : 4,412.92 = 3,083.58 : x
  2. Step 2: Convert to fraction form
    3,178.62/4,412.92 = 3,083.58/x
  3. Step 3: Cross multiply
    3,178.62x = 4,412.92 × 3,083.58
  4. Step 4: Simplify right side
    3,178.62x = 13,607,591.85
  5. Step 5: Solve for x
    x = 13,607,591.85/3,178.62
  6. Step 6: Final answer
    x = 4,280.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.