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Finding the Fourth Proportional to 7,489.94, 11,234.94 and 1,942.89

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Solution

The fourth proportional to 7,489.94, 11,234.94 and 1,942.89 is: 2,914.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,489.94 : 11,234.94 = 1,942.89 : x
  2. Step 2: Convert to fraction form
    7,489.94/11,234.94 = 1,942.89/x
  3. Step 3: Cross multiply
    7,489.94x = 11,234.94 × 1,942.89
  4. Step 4: Simplify right side
    7,489.94x = 21,828,252.58
  5. Step 5: Solve for x
    x = 21,828,252.58/7,489.94
  6. Step 6: Final answer
    x = 2,914.34

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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.