Home / 6,115.96-9,177.90-2,220.04

Finding the Fourth Proportional to 6,115.96, 9,177.90 and 2,220.04

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Solution

The fourth proportional to 6,115.96, 9,177.90 and 2,220.04 is: 3,331.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,115.96 : 9,177.90 = 2,220.04 : x
  2. Step 2: Convert to fraction form
    6,115.96/9,177.90 = 2,220.04/x
  3. Step 3: Cross multiply
    6,115.96x = 9,177.90 × 2,220.04
  4. Step 4: Simplify right side
    6,115.96x = 20,375,305.12
  5. Step 5: Solve for x
    x = 20,375,305.12/6,115.96
  6. Step 6: Final answer
    x = 3,331.50

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Half scale
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Double scale
Find fourth proportional to 6,116.96, 9,179.40 and 2,221.04
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.