Home / 6,221.21-8,585.26-3,426.71

Finding the Fourth Proportional to 6,221.21, 8,585.26 and 3,426.71

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Solution

The fourth proportional to 6,221.21, 8,585.26 and 3,426.71 is: 4,728.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,221.21 : 8,585.26 = 3,426.71 : x
  2. Step 2: Convert to fraction form
    6,221.21/8,585.26 = 3,426.71/x
  3. Step 3: Cross multiply
    6,221.21x = 8,585.26 × 3,426.71
  4. Step 4: Simplify right side
    6,221.21x = 29,419,161.94
  5. Step 5: Solve for x
    x = 29,419,161.94/6,221.21
  6. Step 6: Final answer
    x = 4,728.85

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Half scale
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Double scale
Find fourth proportional to 6,222.21, 8,586.64 and 3,427.71
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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.