Home / 4,920.21-6,789.92-2,682.09

Finding the Fourth Proportional to 4,920.21, 6,789.92 and 2,682.09

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Solution

The fourth proportional to 4,920.21, 6,789.92 and 2,682.09 is: 3,701.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,920.21 : 6,789.92 = 2,682.09 : x
  2. Step 2: Convert to fraction form
    4,920.21/6,789.92 = 2,682.09/x
  3. Step 3: Cross multiply
    4,920.21x = 6,789.92 × 2,682.09
  4. Step 4: Simplify right side
    4,920.21x = 18,211,163.12
  5. Step 5: Solve for x
    x = 18,211,163.12/4,920.21
  6. Step 6: Final answer
    x = 3,701.30

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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.