Home / 3,380.46-5,072.96-1,189.20

Finding the Fourth Proportional to 3,380.46, 5,072.96 and 1,189.20

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Solution

The fourth proportional to 3,380.46, 5,072.96 and 1,189.20 is: 1,784.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,380.46 : 5,072.96 = 1,189.20 : x
  2. Step 2: Convert to fraction form
    3,380.46/5,072.96 = 1,189.20/x
  3. Step 3: Cross multiply
    3,380.46x = 5,072.96 × 1,189.20
  4. Step 4: Simplify right side
    3,380.46x = 6,032,764.03
  5. Step 5: Solve for x
    x = 6,032,764.03/3,380.46
  6. Step 6: Final answer
    x = 1,784.60

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Half scale
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Double scale
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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.