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Finding the Fourth Proportional to 3,329.91, 4,998.00 and 1,687.64

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Solution

The fourth proportional to 3,329.91, 4,998.00 and 1,687.64 is: 2,533.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,329.91 : 4,998.00 = 1,687.64 : x
  2. Step 2: Convert to fraction form
    3,329.91/4,998.00 = 1,687.64/x
  3. Step 3: Cross multiply
    3,329.91x = 4,998.00 × 1,687.64
  4. Step 4: Simplify right side
    3,329.91x = 8,434,806.06
  5. Step 5: Solve for x
    x = 8,434,806.06/3,329.91
  6. Step 6: Final answer
    x = 2,533.04

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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.