Home / 2,961.23-4,442.30-1,112.09

Finding the Fourth Proportional to 2,961.23, 4,442.30 and 1,112.09

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Solution

The fourth proportional to 2,961.23, 4,442.30 and 1,112.09 is: 1,668.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,961.23 : 4,442.30 = 1,112.09 : x
  2. Step 2: Convert to fraction form
    2,961.23/4,442.30 = 1,112.09/x
  3. Step 3: Cross multiply
    2,961.23x = 4,442.30 × 1,112.09
  4. Step 4: Simplify right side
    2,961.23x = 4,940,237.41
  5. Step 5: Solve for x
    x = 4,940,237.41/2,961.23
  6. Step 6: Final answer
    x = 1,668.31

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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.