Home / 3,660.58-5,491.48-1,811.76

Finding the Fourth Proportional to 3,660.58, 5,491.48 and 1,811.76

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Solution

The fourth proportional to 3,660.58, 5,491.48 and 1,811.76 is: 2,717.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,660.58 : 5,491.48 = 1,811.76 : x
  2. Step 2: Convert to fraction form
    3,660.58/5,491.48 = 1,811.76/x
  3. Step 3: Cross multiply
    3,660.58x = 5,491.48 × 1,811.76
  4. Step 4: Simplify right side
    3,660.58x = 9,949,243.80
  5. Step 5: Solve for x
    x = 9,949,243.80/3,660.58
  6. Step 6: Final answer
    x = 2,717.94

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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.