Home / 3,491.28-4,818.20-1,919.37

Finding the Fourth Proportional to 3,491.28, 4,818.20 and 1,919.37

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Solution

The fourth proportional to 3,491.28, 4,818.20 and 1,919.37 is: 2,648.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,491.28 : 4,818.20 = 1,919.37 : x
  2. Step 2: Convert to fraction form
    3,491.28/4,818.20 = 1,919.37/x
  3. Step 3: Cross multiply
    3,491.28x = 4,818.20 × 1,919.37
  4. Step 4: Simplify right side
    3,491.28x = 9,247,913.33
  5. Step 5: Solve for x
    x = 9,247,913.33/3,491.28
  6. Step 6: Final answer
    x = 2,648.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.