Home / 4,221.62-6,333.27-1,299.81

Finding the Fourth Proportional to 4,221.62, 6,333.27 and 1,299.81

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Solution

The fourth proportional to 4,221.62, 6,333.27 and 1,299.81 is: 1,949.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,221.62 : 6,333.27 = 1,299.81 : x
  2. Step 2: Convert to fraction form
    4,221.62/6,333.27 = 1,299.81/x
  3. Step 3: Cross multiply
    4,221.62x = 6,333.27 × 1,299.81
  4. Step 4: Simplify right side
    4,221.62x = 8,232,047.68
  5. Step 5: Solve for x
    x = 8,232,047.68/4,221.62
  6. Step 6: Final answer
    x = 1,949.97

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Half scale
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Double scale
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Similar ratio
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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.