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Finding the Fourth Proportional to 3,689.87, 5,533.99 and 1,499.09

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Solution

The fourth proportional to 3,689.87, 5,533.99 and 1,499.09 is: 2,248.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,689.87 : 5,533.99 = 1,499.09 : x
  2. Step 2: Convert to fraction form
    3,689.87/5,533.99 = 1,499.09/x
  3. Step 3: Cross multiply
    3,689.87x = 5,533.99 × 1,499.09
  4. Step 4: Simplify right side
    3,689.87x = 8,295,917.65
  5. Step 5: Solve for x
    x = 8,295,917.65/3,689.87
  6. Step 6: Final answer
    x = 2,248.30

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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.