Home / 2,961.31-4,086.36-1,826.66

Finding the Fourth Proportional to 2,961.31, 4,086.36 and 1,826.66

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Solution

The fourth proportional to 2,961.31, 4,086.36 and 1,826.66 is: 2,520.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,961.31 : 4,086.36 = 1,826.66 : x
  2. Step 2: Convert to fraction form
    2,961.31/4,086.36 = 1,826.66/x
  3. Step 3: Cross multiply
    2,961.31x = 4,086.36 × 1,826.66
  4. Step 4: Simplify right side
    2,961.31x = 7,464,377.25
  5. Step 5: Solve for x
    x = 7,464,377.25/2,961.31
  6. Step 6: Final answer
    x = 2,520.64

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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.