Home / 2,961.91-4,442.71-1,112.88

Finding the Fourth Proportional to 2,961.91, 4,442.71 and 1,112.88

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Solution

The fourth proportional to 2,961.91, 4,442.71 and 1,112.88 is: 1,669.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,961.91 : 4,442.71 = 1,112.88 : x
  2. Step 2: Convert to fraction form
    2,961.91/4,442.71 = 1,112.88/x
  3. Step 3: Cross multiply
    2,961.91x = 4,442.71 × 1,112.88
  4. Step 4: Simplify right side
    2,961.91x = 4,944,203.10
  5. Step 5: Solve for x
    x = 4,944,203.10/2,961.91
  6. Step 6: Final answer
    x = 1,669.26

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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.