Home / 7,889.57-11,834.34-3,212.12

Finding the Fourth Proportional to 7,889.57, 11,834.34 and 3,212.12

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Solution

The fourth proportional to 7,889.57, 11,834.34 and 3,212.12 is: 4,818.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,889.57 : 11,834.34 = 3,212.12 : x
  2. Step 2: Convert to fraction form
    7,889.57/11,834.34 = 3,212.12/x
  3. Step 3: Cross multiply
    7,889.57x = 11,834.34 × 3,212.12
  4. Step 4: Simplify right side
    7,889.57x = 38,013,320.20
  5. Step 5: Solve for x
    x = 38,013,320.20/7,889.57
  6. Step 6: Final answer
    x = 4,818.17

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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.