Home / 5,538.36-7,642.96-3,299.78

Finding the Fourth Proportional to 5,538.36, 7,642.96 and 3,299.78

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Solution

The fourth proportional to 5,538.36, 7,642.96 and 3,299.78 is: 4,553.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,538.36 : 7,642.96 = 3,299.78 : x
  2. Step 2: Convert to fraction form
    5,538.36/7,642.96 = 3,299.78/x
  3. Step 3: Cross multiply
    5,538.36x = 7,642.96 × 3,299.78
  4. Step 4: Simplify right side
    5,538.36x = 25,220,086.55
  5. Step 5: Solve for x
    x = 25,220,086.55/5,538.36
  6. Step 6: Final answer
    x = 4,553.71

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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.