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Finding the Fourth Proportional to 2,512.28, 3,768.12 and 663.52

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Solution

The fourth proportional to 2,512.28, 3,768.12 and 663.52 is: 995.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,512.28 : 3,768.12 = 663.52 : x
  2. Step 2: Convert to fraction form
    2,512.28/3,768.12 = 663.52/x
  3. Step 3: Cross multiply
    2,512.28x = 3,768.12 × 663.52
  4. Step 4: Simplify right side
    2,512.28x = 2,500,222.98
  5. Step 5: Solve for x
    x = 2,500,222.98/2,512.28
  6. Step 6: Final answer
    x = 995.20

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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.