Home / 3,819.71-5,271.33-2,141.19

Finding the Fourth Proportional to 3,819.71, 5,271.33 and 2,141.19

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Solution

The fourth proportional to 3,819.71, 5,271.33 and 2,141.19 is: 2,954.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,819.71 : 5,271.33 = 2,141.19 : x
  2. Step 2: Convert to fraction form
    3,819.71/5,271.33 = 2,141.19/x
  3. Step 3: Cross multiply
    3,819.71x = 5,271.33 × 2,141.19
  4. Step 4: Simplify right side
    3,819.71x = 11,286,919.08
  5. Step 5: Solve for x
    x = 11,286,919.08/3,819.71
  6. Step 6: Final answer
    x = 2,954.92

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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.