Home / 3,291.20-4,936.32-1,099.92

Finding the Fourth Proportional to 3,291.20, 4,936.32 and 1,099.92

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Solution

The fourth proportional to 3,291.20, 4,936.32 and 1,099.92 is: 1,649.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,291.20 : 4,936.32 = 1,099.92 : x
  2. Step 2: Convert to fraction form
    3,291.20/4,936.32 = 1,099.92/x
  3. Step 3: Cross multiply
    3,291.20x = 4,936.32 × 1,099.92
  4. Step 4: Simplify right side
    3,291.20x = 5,429,557.09
  5. Step 5: Solve for x
    x = 5,429,557.09/3,291.20
  6. Step 6: Final answer
    x = 1,649.72

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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.