Home / 4,078.50-5,631.57-3,198.84

Finding the Fourth Proportional to 4,078.50, 5,631.57 and 3,198.84

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Solution

The fourth proportional to 4,078.50, 5,631.57 and 3,198.84 is: 4,416.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,078.50 : 5,631.57 = 3,198.84 : x
  2. Step 2: Convert to fraction form
    4,078.50/5,631.57 = 3,198.84/x
  3. Step 3: Cross multiply
    4,078.50x = 5,631.57 × 3,198.84
  4. Step 4: Simplify right side
    4,078.50x = 18,014,491.38
  5. Step 5: Solve for x
    x = 18,014,491.38/4,078.50
  6. Step 6: Final answer
    x = 4,416.94

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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.