Home / 2,891.23-4,339.28-1,249.02

Finding the Fourth Proportional to 2,891.23, 4,339.28 and 1,249.02

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Solution

The fourth proportional to 2,891.23, 4,339.28 and 1,249.02 is: 1,874.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,891.23 : 4,339.28 = 1,249.02 : x
  2. Step 2: Convert to fraction form
    2,891.23/4,339.28 = 1,249.02/x
  3. Step 3: Cross multiply
    2,891.23x = 4,339.28 × 1,249.02
  4. Step 4: Simplify right side
    2,891.23x = 5,419,847.51
  5. Step 5: Solve for x
    x = 5,419,847.51/2,891.23
  6. Step 6: Final answer
    x = 1,874.58

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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.