Home / 2,808.31-4,213.97-1,249.87

Finding the Fourth Proportional to 2,808.31, 4,213.97 and 1,249.87

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Solution

The fourth proportional to 2,808.31, 4,213.97 and 1,249.87 is: 1,875.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,808.31 : 4,213.97 = 1,249.87 : x
  2. Step 2: Convert to fraction form
    2,808.31/4,213.97 = 1,249.87/x
  3. Step 3: Cross multiply
    2,808.31x = 4,213.97 × 1,249.87
  4. Step 4: Simplify right side
    2,808.31x = 5,266,914.68
  5. Step 5: Solve for x
    x = 5,266,914.68/2,808.31
  6. Step 6: Final answer
    x = 1,875.47

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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.