Home / 7,981.84-11,971.22-4,691.09

Finding the Fourth Proportional to 7,981.84, 11,971.22 and 4,691.09

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Solution

The fourth proportional to 7,981.84, 11,971.22 and 4,691.09 is: 7,035.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,981.84 : 11,971.22 = 4,691.09 : x
  2. Step 2: Convert to fraction form
    7,981.84/11,971.22 = 4,691.09/x
  3. Step 3: Cross multiply
    7,981.84x = 11,971.22 × 4,691.09
  4. Step 4: Simplify right side
    7,981.84x = 56,158,070.43
  5. Step 5: Solve for x
    x = 56,158,070.43/7,981.84
  6. Step 6: Final answer
    x = 7,035.73

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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.