Home / 3,819.68-5,271.53-2,141.09

Finding the Fourth Proportional to 3,819.68, 5,271.53 and 2,141.09

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Solution

The fourth proportional to 3,819.68, 5,271.53 and 2,141.09 is: 2,954.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,819.68 : 5,271.53 = 2,141.09 : x
  2. Step 2: Convert to fraction form
    3,819.68/5,271.53 = 2,141.09/x
  3. Step 3: Cross multiply
    3,819.68x = 5,271.53 × 2,141.09
  4. Step 4: Simplify right side
    3,819.68x = 11,286,783.10
  5. Step 5: Solve for x
    x = 11,286,783.10/3,819.68
  6. Step 6: Final answer
    x = 2,954.91

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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.