Home / 3,887.53-5,366.85-3,123.03

Finding the Fourth Proportional to 3,887.53, 5,366.85 and 3,123.03

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Solution

The fourth proportional to 3,887.53, 5,366.85 and 3,123.03 is: 4,311.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,887.53 : 5,366.85 = 3,123.03 : x
  2. Step 2: Convert to fraction form
    3,887.53/5,366.85 = 3,123.03/x
  3. Step 3: Cross multiply
    3,887.53x = 5,366.85 × 3,123.03
  4. Step 4: Simplify right side
    3,887.53x = 16,760,791.11
  5. Step 5: Solve for x
    x = 16,760,791.11/3,887.53
  6. Step 6: Final answer
    x = 4,311.42

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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.