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Finding the Fourth Proportional to 7,889.90, 11,834.87 and 2,046.51

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Solution

The fourth proportional to 7,889.90, 11,834.87 and 2,046.51 is: 3,069.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,889.90 : 11,834.87 = 2,046.51 : x
  2. Step 2: Convert to fraction form
    7,889.90/11,834.87 = 2,046.51/x
  3. Step 3: Cross multiply
    7,889.90x = 11,834.87 × 2,046.51
  4. Step 4: Simplify right side
    7,889.90x = 24,220,169.57
  5. Step 5: Solve for x
    x = 24,220,169.57/7,889.90
  6. Step 6: Final answer
    x = 3,069.77

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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.