Home / 4,123.21-6,217.16-3,778.76

Finding the Fourth Proportional to 4,123.21, 6,217.16 and 3,778.76

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Solution

The fourth proportional to 4,123.21, 6,217.16 and 3,778.76 is: 5,697.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,123.21 : 6,217.16 = 3,778.76 : x
  2. Step 2: Convert to fraction form
    4,123.21/6,217.16 = 3,778.76/x
  3. Step 3: Cross multiply
    4,123.21x = 6,217.16 × 3,778.76
  4. Step 4: Simplify right side
    4,123.21x = 23,493,155.52
  5. Step 5: Solve for x
    x = 23,493,155.52/4,123.21
  6. Step 6: Final answer
    x = 5,697.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.