Home / 3,551.39-5,327.09-1,086.20

Finding the Fourth Proportional to 3,551.39, 5,327.09 and 1,086.20

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Solution

The fourth proportional to 3,551.39, 5,327.09 and 1,086.20 is: 1,629.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,551.39 : 5,327.09 = 1,086.20 : x
  2. Step 2: Convert to fraction form
    3,551.39/5,327.09 = 1,086.20/x
  3. Step 3: Cross multiply
    3,551.39x = 5,327.09 × 1,086.20
  4. Step 4: Simplify right side
    3,551.39x = 5,786,285.16
  5. Step 5: Solve for x
    x = 5,786,285.16/3,551.39
  6. Step 6: Final answer
    x = 1,629.30

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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.