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Finding the Fourth Proportional to 7,951.83, 11,927.73 and 2,107.98

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Solution

The fourth proportional to 7,951.83, 11,927.73 and 2,107.98 is: 3,161.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,951.83 : 11,927.73 = 2,107.98 : x
  2. Step 2: Convert to fraction form
    7,951.83/11,927.73 = 2,107.98/x
  3. Step 3: Cross multiply
    7,951.83x = 11,927.73 × 2,107.98
  4. Step 4: Simplify right side
    7,951.83x = 25,143,416.29
  5. Step 5: Solve for x
    x = 25,143,416.29/7,951.83
  6. Step 6: Final answer
    x = 3,161.97

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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.