Home / 2,181.17-3,254.91-1,947.56

Finding the Fourth Proportional to 2,181.17, 3,254.91 and 1,947.56

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Solution

The fourth proportional to 2,181.17, 3,254.91 and 1,947.56 is: 2,906.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,181.17 : 3,254.91 = 1,947.56 : x
  2. Step 2: Convert to fraction form
    2,181.17/3,254.91 = 1,947.56/x
  3. Step 3: Cross multiply
    2,181.17x = 3,254.91 × 1,947.56
  4. Step 4: Simplify right side
    2,181.17x = 6,339,108.94
  5. Step 5: Solve for x
    x = 6,339,108.94/2,181.17
  6. Step 6: Final answer
    x = 2,906.29

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.