Home / 1,660.66-2,491.85-736.85

Finding the Fourth Proportional to 1,660.66, 2,491.85 and 736.85

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Solution

The fourth proportional to 1,660.66, 2,491.85 and 736.85 is: 1,105.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,660.66 : 2,491.85 = 736.85 : x
  2. Step 2: Convert to fraction form
    1,660.66/2,491.85 = 736.85/x
  3. Step 3: Cross multiply
    1,660.66x = 2,491.85 × 736.85
  4. Step 4: Simplify right side
    1,660.66x = 1,836,122.22
  5. Step 5: Solve for x
    x = 1,836,122.22/1,660.66
  6. Step 6: Final answer
    x = 1,105.66

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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.