Home / 3,783.32-5,220.20-2,211.11

Finding the Fourth Proportional to 3,783.32, 5,220.20 and 2,211.11

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Solution

The fourth proportional to 3,783.32, 5,220.20 and 2,211.11 is: 3,050.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,783.32 : 5,220.20 = 2,211.11 : x
  2. Step 2: Convert to fraction form
    3,783.32/5,220.20 = 2,211.11/x
  3. Step 3: Cross multiply
    3,783.32x = 5,220.20 × 2,211.11
  4. Step 4: Simplify right side
    3,783.32x = 11,542,399.27
  5. Step 5: Solve for x
    x = 11,542,399.27/3,783.32
  6. Step 6: Final answer
    x = 3,050.87

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Half scale
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Double scale
Find fourth proportional to 3,784.32, 5,221.57 and 2,212.11
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.