Home / 5,481.48-8,221.20-1,783.14

Finding the Fourth Proportional to 5,481.48, 8,221.20 and 1,783.14

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Solution

The fourth proportional to 5,481.48, 8,221.20 and 1,783.14 is: 2,674.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,481.48 : 8,221.20 = 1,783.14 : x
  2. Step 2: Convert to fraction form
    5,481.48/8,221.20 = 1,783.14/x
  3. Step 3: Cross multiply
    5,481.48x = 8,221.20 × 1,783.14
  4. Step 4: Simplify right side
    5,481.48x = 14,659,550.57
  5. Step 5: Solve for x
    x = 14,659,550.57/5,481.48
  6. Step 6: Final answer
    x = 2,674.38

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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.