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Finding the Fourth Proportional to 5,930.28, 8,894.41 and 1,981.09

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Solution

The fourth proportional to 5,930.28, 8,894.41 and 1,981.09 is: 2,971.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,930.28 : 8,894.41 = 1,981.09 : x
  2. Step 2: Convert to fraction form
    5,930.28/8,894.41 = 1,981.09/x
  3. Step 3: Cross multiply
    5,930.28x = 8,894.41 × 1,981.09
  4. Step 4: Simplify right side
    5,930.28x = 17,620,599.52
  5. Step 5: Solve for x
    x = 17,620,599.52/5,930.28
  6. Step 6: Final answer
    x = 2,971.29

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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.