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Finding the Fourth Proportional to 2,936.88, 4,405.86 and 935.73

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Solution

The fourth proportional to 2,936.88, 4,405.86 and 935.73 is: 1,403.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,936.88 : 4,405.86 = 935.73 : x
  2. Step 2: Convert to fraction form
    2,936.88/4,405.86 = 935.73/x
  3. Step 3: Cross multiply
    2,936.88x = 4,405.86 × 935.73
  4. Step 4: Simplify right side
    2,936.88x = 4,122,695.38
  5. Step 5: Solve for x
    x = 4,122,695.38/2,936.88
  6. Step 6: Final answer
    x = 1,403.77

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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.