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Finding the Fourth Proportional to 7,151.54, 10,727.30 and 1,957.82

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Solution

The fourth proportional to 7,151.54, 10,727.30 and 1,957.82 is: 2,936.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,151.54 : 10,727.30 = 1,957.82 : x
  2. Step 2: Convert to fraction form
    7,151.54/10,727.30 = 1,957.82/x
  3. Step 3: Cross multiply
    7,151.54x = 10,727.30 × 1,957.82
  4. Step 4: Simplify right side
    7,151.54x = 21,002,122.49
  5. Step 5: Solve for x
    x = 21,002,122.49/7,151.54
  6. Step 6: Final answer
    x = 2,936.73

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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.