Home / 3,892.03-5,370.82-2,123.58

Finding the Fourth Proportional to 3,892.03, 5,370.82 and 2,123.58

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Solution

The fourth proportional to 3,892.03, 5,370.82 and 2,123.58 is: 2,930.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,892.03 : 5,370.82 = 2,123.58 : x
  2. Step 2: Convert to fraction form
    3,892.03/5,370.82 = 2,123.58/x
  3. Step 3: Cross multiply
    3,892.03x = 5,370.82 × 2,123.58
  4. Step 4: Simplify right side
    3,892.03x = 11,405,365.94
  5. Step 5: Solve for x
    x = 11,405,365.94/3,892.03
  6. Step 6: Final answer
    x = 2,930.44

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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.