Home / 3,819.96-5,271.73-2,141.54

Finding the Fourth Proportional to 3,819.96, 5,271.73 and 2,141.54

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Solution

The fourth proportional to 3,819.96, 5,271.73 and 2,141.54 is: 2,955.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,819.96 : 5,271.73 = 2,141.54 : x
  2. Step 2: Convert to fraction form
    3,819.96/5,271.73 = 2,141.54/x
  3. Step 3: Cross multiply
    3,819.96x = 5,271.73 × 2,141.54
  4. Step 4: Simplify right side
    3,819.96x = 11,289,594.31
  5. Step 5: Solve for x
    x = 11,289,594.31/3,819.96
  6. Step 6: Final answer
    x = 2,955.43

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1.5x scale

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.