Home / 2,789.88-4,185.99-1,491

Finding the Fourth Proportional to 2,789.88, 4,185.99 and 1,491

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Solution

The fourth proportional to 2,789.88, 4,185.99 and 1,491 is: 2,237.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,789.88 : 4,185.99 = 1,491 : x
  2. Step 2: Convert to fraction form
    2,789.88/4,185.99 = 1,491/x
  3. Step 3: Cross multiply
    2,789.88x = 4,185.99 × 1,491
  4. Step 4: Simplify right side
    2,789.88x = 6,241,311.09
  5. Step 5: Solve for x
    x = 6,241,311.09/2,789.88
  6. Step 6: Final answer
    x = 2,237.13

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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.