Home / 1,817.08-2,725.66-518.56

Finding the Fourth Proportional to 1,817.08, 2,725.66 and 518.56

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Solution

The fourth proportional to 1,817.08, 2,725.66 and 518.56 is: 777.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,817.08 : 2,725.66 = 518.56 : x
  2. Step 2: Convert to fraction form
    1,817.08/2,725.66 = 518.56/x
  3. Step 3: Cross multiply
    1,817.08x = 2,725.66 × 518.56
  4. Step 4: Simplify right side
    1,817.08x = 1,413,418.25
  5. Step 5: Solve for x
    x = 1,413,418.25/1,817.08
  6. Step 6: Final answer
    x = 777.85

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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.