Home / 4,147.50-6,221.25-1,227.85

Finding the Fourth Proportional to 4,147.50, 6,221.25 and 1,227.85

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Solution

The fourth proportional to 4,147.50, 6,221.25 and 1,227.85 is: 1,841.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,147.50 : 6,221.25 = 1,227.85 : x
  2. Step 2: Convert to fraction form
    4,147.50/6,221.25 = 1,227.85/x
  3. Step 3: Cross multiply
    4,147.50x = 6,221.25 × 1,227.85
  4. Step 4: Simplify right side
    4,147.50x = 7,638,761.81
  5. Step 5: Solve for x
    x = 7,638,761.81/4,147.50
  6. Step 6: Final answer
    x = 1,841.78

Related Problems

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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.