Home / 2,689.53-4,035.30-1,455.49

Finding the Fourth Proportional to 2,689.53, 4,035.30 and 1,455.49

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Solution

The fourth proportional to 2,689.53, 4,035.30 and 1,455.49 is: 2,183.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,689.53 : 4,035.30 = 1,455.49 : x
  2. Step 2: Convert to fraction form
    2,689.53/4,035.30 = 1,455.49/x
  3. Step 3: Cross multiply
    2,689.53x = 4,035.30 × 1,455.49
  4. Step 4: Simplify right side
    2,689.53x = 5,873,338.80
  5. Step 5: Solve for x
    x = 5,873,338.80/2,689.53
  6. Step 6: Final answer
    x = 2,183.78

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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.