Home / 2,811.39-3,879.95-1,632.44

Finding the Fourth Proportional to 2,811.39, 3,879.95 and 1,632.44

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Solution

The fourth proportional to 2,811.39, 3,879.95 and 1,632.44 is: 2,252.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,811.39 : 3,879.95 = 1,632.44 : x
  2. Step 2: Convert to fraction form
    2,811.39/3,879.95 = 1,632.44/x
  3. Step 3: Cross multiply
    2,811.39x = 3,879.95 × 1,632.44
  4. Step 4: Simplify right side
    2,811.39x = 6,333,758.02
  5. Step 5: Solve for x
    x = 6,333,758.02/2,811.39
  6. Step 6: Final answer
    x = 2,252.89

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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.