Home / 2,491.88-3,738.66-1,105.02

Finding the Fourth Proportional to 2,491.88, 3,738.66 and 1,105.02

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Solution

The fourth proportional to 2,491.88, 3,738.66 and 1,105.02 is: 1,657.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,491.88 : 3,738.66 = 1,105.02 : x
  2. Step 2: Convert to fraction form
    2,491.88/3,738.66 = 1,105.02/x
  3. Step 3: Cross multiply
    2,491.88x = 3,738.66 × 1,105.02
  4. Step 4: Simplify right side
    2,491.88x = 4,131,294.07
  5. Step 5: Solve for x
    x = 4,131,294.07/2,491.88
  6. Step 6: Final answer
    x = 1,657.90

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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.