Home / 4,189.68-6,285.31-1,998.56

Finding the Fourth Proportional to 4,189.68, 6,285.31 and 1,998.56

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Solution

The fourth proportional to 4,189.68, 6,285.31 and 1,998.56 is: 2,998.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,189.68 : 6,285.31 = 1,998.56 : x
  2. Step 2: Convert to fraction form
    4,189.68/6,285.31 = 1,998.56/x
  3. Step 3: Cross multiply
    4,189.68x = 6,285.31 × 1,998.56
  4. Step 4: Simplify right side
    4,189.68x = 12,561,579.87
  5. Step 5: Solve for x
    x = 12,561,579.87/4,189.68
  6. Step 6: Final answer
    x = 2,998.22

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1.5x scale

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.