Home / 3,217.85-4,818.92-2,906.21

Finding the Fourth Proportional to 3,217.85, 4,818.92 and 2,906.21

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Solution

The fourth proportional to 3,217.85, 4,818.92 and 2,906.21 is: 4,352.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,217.85 : 4,818.92 = 2,906.21 : x
  2. Step 2: Convert to fraction form
    3,217.85/4,818.92 = 2,906.21/x
  3. Step 3: Cross multiply
    3,217.85x = 4,818.92 × 2,906.21
  4. Step 4: Simplify right side
    3,217.85x = 14,004,754.87
  5. Step 5: Solve for x
    x = 14,004,754.87/3,217.85
  6. Step 6: Final answer
    x = 4,352.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.