Home / 3,551.56-5,326.98-1,086.40

Finding the Fourth Proportional to 3,551.56, 5,326.98 and 1,086.40

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Solution

The fourth proportional to 3,551.56, 5,326.98 and 1,086.40 is: 1,629.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,551.56 : 5,326.98 = 1,086.40 : x
  2. Step 2: Convert to fraction form
    3,551.56/5,326.98 = 1,086.40/x
  3. Step 3: Cross multiply
    3,551.56x = 5,326.98 × 1,086.40
  4. Step 4: Simplify right side
    3,551.56x = 5,787,231.07
  5. Step 5: Solve for x
    x = 5,787,231.07/3,551.56
  6. Step 6: Final answer
    x = 1,629.49

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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.