Home / 2,251.88-3,107.82-1,355.91

Finding the Fourth Proportional to 2,251.88, 3,107.82 and 1,355.91

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Solution

The fourth proportional to 2,251.88, 3,107.82 and 1,355.91 is: 1,871.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,251.88 : 3,107.82 = 1,355.91 : x
  2. Step 2: Convert to fraction form
    2,251.88/3,107.82 = 1,355.91/x
  3. Step 3: Cross multiply
    2,251.88x = 3,107.82 × 1,355.91
  4. Step 4: Simplify right side
    2,251.88x = 4,213,924.22
  5. Step 5: Solve for x
    x = 4,213,924.22/2,251.88
  6. Step 6: Final answer
    x = 1,871.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.