Home / 7,910.56-11,869.03-2,981.61

Finding the Fourth Proportional to 7,910.56, 11,869.03 and 2,981.61

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Solution

The fourth proportional to 7,910.56, 11,869.03 and 2,981.61 is: 4,473.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,910.56 : 11,869.03 = 2,981.61 : x
  2. Step 2: Convert to fraction form
    7,910.56/11,869.03 = 2,981.61/x
  3. Step 3: Cross multiply
    7,910.56x = 11,869.03 × 2,981.61
  4. Step 4: Simplify right side
    7,910.56x = 35,388,822.27
  5. Step 5: Solve for x
    x = 35,388,822.27/7,910.56
  6. Step 6: Final answer
    x = 4,473.62

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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.