Home / 3,972.05-5,951.99-2,123.43

Finding the Fourth Proportional to 3,972.05, 5,951.99 and 2,123.43

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Solution

The fourth proportional to 3,972.05, 5,951.99 and 2,123.43 is: 3,181.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,972.05 : 5,951.99 = 2,123.43 : x
  2. Step 2: Convert to fraction form
    3,972.05/5,951.99 = 2,123.43/x
  3. Step 3: Cross multiply
    3,972.05x = 5,951.99 × 2,123.43
  4. Step 4: Simplify right side
    3,972.05x = 12,638,604.37
  5. Step 5: Solve for x
    x = 12,638,604.37/3,972.05
  6. Step 6: Final answer
    x = 3,181.89

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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.