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Finding the Fourth Proportional to 3,142.72, 4,732.73 and 2,736.76

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Solution

The fourth proportional to 3,142.72, 4,732.73 and 2,736.76 is: 4,121.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,142.72 : 4,732.73 = 2,736.76 : x
  2. Step 2: Convert to fraction form
    3,142.72/4,732.73 = 2,736.76/x
  3. Step 3: Cross multiply
    3,142.72x = 4,732.73 × 2,736.76
  4. Step 4: Simplify right side
    3,142.72x = 12,952,340.24
  5. Step 5: Solve for x
    x = 12,952,340.24/3,142.72
  6. Step 6: Final answer
    x = 4,121.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.