Home / 3,853.59-5,777.96-2,123.43

Finding the Fourth Proportional to 3,853.59, 5,777.96 and 2,123.43

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Solution

The fourth proportional to 3,853.59, 5,777.96 and 2,123.43 is: 3,183.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,853.59 : 5,777.96 = 2,123.43 : x
  2. Step 2: Convert to fraction form
    3,853.59/5,777.96 = 2,123.43/x
  3. Step 3: Cross multiply
    3,853.59x = 5,777.96 × 2,123.43
  4. Step 4: Simplify right side
    3,853.59x = 12,269,082.99
  5. Step 5: Solve for x
    x = 12,269,082.99/3,853.59
  6. Step 6: Final answer
    x = 3,183.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.