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Finding the Fourth Proportional to 1,512.55, 2,268.84 and 995.83

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Solution

The fourth proportional to 1,512.55, 2,268.84 and 995.83 is: 1,493.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,512.55 : 2,268.84 = 995.83 : x
  2. Step 2: Convert to fraction form
    1,512.55/2,268.84 = 995.83/x
  3. Step 3: Cross multiply
    1,512.55x = 2,268.84 × 995.83
  4. Step 4: Simplify right side
    1,512.55x = 2,259,378.94
  5. Step 5: Solve for x
    x = 2,259,378.94/1,512.55
  6. Step 6: Final answer
    x = 1,493.75

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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.