Home / 3,221.15-4,824.39-1,919.93

Finding the Fourth Proportional to 3,221.15, 4,824.39 and 1,919.93

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Solution

The fourth proportional to 3,221.15, 4,824.39 and 1,919.93 is: 2,875.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,221.15 : 4,824.39 = 1,919.93 : x
  2. Step 2: Convert to fraction form
    3,221.15/4,824.39 = 1,919.93/x
  3. Step 3: Cross multiply
    3,221.15x = 4,824.39 × 1,919.93
  4. Step 4: Simplify right side
    3,221.15x = 9,262,491.09
  5. Step 5: Solve for x
    x = 9,262,491.09/3,221.15
  6. Step 6: Final answer
    x = 2,875.52

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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.