Home / 3,819.88-5,271.64-2,141.82

Finding the Fourth Proportional to 3,819.88, 5,271.64 and 2,141.82

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Solution

The fourth proportional to 3,819.88, 5,271.64 and 2,141.82 is: 2,955.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,819.88 : 5,271.64 = 2,141.82 : x
  2. Step 2: Convert to fraction form
    3,819.88/5,271.64 = 2,141.82/x
  3. Step 3: Cross multiply
    3,819.88x = 5,271.64 × 2,141.82
  4. Step 4: Simplify right side
    3,819.88x = 11,290,893.28
  5. Step 5: Solve for x
    x = 11,290,893.28/3,819.88
  6. Step 6: Final answer
    x = 2,955.83

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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.