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Finding the Fourth Proportional to 3,320.99, 4,980.26 and 1,446.65

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Solution

The fourth proportional to 3,320.99, 4,980.26 and 1,446.65 is: 2,169.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,320.99 : 4,980.26 = 1,446.65 : x
  2. Step 2: Convert to fraction form
    3,320.99/4,980.26 = 1,446.65/x
  3. Step 3: Cross multiply
    3,320.99x = 4,980.26 × 1,446.65
  4. Step 4: Simplify right side
    3,320.99x = 7,204,660.99
  5. Step 5: Solve for x
    x = 7,204,660.99/3,320.99
  6. Step 6: Final answer
    x = 2,169.43

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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.