Home / 3,059.08-4,221.48-1,863.68

Finding the Fourth Proportional to 3,059.08, 4,221.48 and 1,863.68

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Solution

The fourth proportional to 3,059.08, 4,221.48 and 1,863.68 is: 2,571.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,059.08 : 4,221.48 = 1,863.68 : x
  2. Step 2: Convert to fraction form
    3,059.08/4,221.48 = 1,863.68/x
  3. Step 3: Cross multiply
    3,059.08x = 4,221.48 × 1,863.68
  4. Step 4: Simplify right side
    3,059.08x = 7,867,487.85
  5. Step 5: Solve for x
    x = 7,867,487.85/3,059.08
  6. Step 6: Final answer
    x = 2,571.85

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.