Home / 4,029.55-5,561.24-3,900.38

Finding the Fourth Proportional to 4,029.55, 5,561.24 and 3,900.38

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Solution

The fourth proportional to 4,029.55, 5,561.24 and 3,900.38 is: 5,382.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,029.55 : 5,561.24 = 3,900.38 : x
  2. Step 2: Convert to fraction form
    4,029.55/5,561.24 = 3,900.38/x
  3. Step 3: Cross multiply
    4,029.55x = 5,561.24 × 3,900.38
  4. Step 4: Simplify right side
    4,029.55x = 21,690,901.96
  5. Step 5: Solve for x
    x = 21,690,901.96/4,029.55
  6. Step 6: Final answer
    x = 5,382.97

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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.