Home / 7,981.91-11,976.91-3,598.39

Finding the Fourth Proportional to 7,981.91, 11,976.91 and 3,598.39

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Solution

The fourth proportional to 7,981.91, 11,976.91 and 3,598.39 is: 5,399.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,981.91 : 11,976.91 = 3,598.39 : x
  2. Step 2: Convert to fraction form
    7,981.91/11,976.91 = 3,598.39/x
  3. Step 3: Cross multiply
    7,981.91x = 11,976.91 × 3,598.39
  4. Step 4: Simplify right side
    7,981.91x = 43,097,619.39
  5. Step 5: Solve for x
    x = 43,097,619.39/7,981.91
  6. Step 6: Final answer
    x = 5,399.41

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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.