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Finding the Fourth Proportional to 3,321.29, 4,981.94 and 1,346.94

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Solution

The fourth proportional to 3,321.29, 4,981.94 and 1,346.94 is: 2,020.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,321.29 : 4,981.94 = 1,346.94 : x
  2. Step 2: Convert to fraction form
    3,321.29/4,981.94 = 1,346.94/x
  3. Step 3: Cross multiply
    3,321.29x = 4,981.94 × 1,346.94
  4. Step 4: Simplify right side
    3,321.29x = 6,710,367.53
  5. Step 5: Solve for x
    x = 6,710,367.53/3,321.29
  6. Step 6: Final answer
    x = 2,020.41

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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.