Home / 3,438.27-4,745.93-2,021.88

Finding the Fourth Proportional to 3,438.27, 4,745.93 and 2,021.88

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Solution

The fourth proportional to 3,438.27, 4,745.93 and 2,021.88 is: 2,790.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,438.27 : 4,745.93 = 2,021.88 : x
  2. Step 2: Convert to fraction form
    3,438.27/4,745.93 = 2,021.88/x
  3. Step 3: Cross multiply
    3,438.27x = 4,745.93 × 2,021.88
  4. Step 4: Simplify right side
    3,438.27x = 9,595,700.95
  5. Step 5: Solve for x
    x = 9,595,700.95/3,438.27
  6. Step 6: Final answer
    x = 2,790.86

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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.