Home / 3,819.03-5,270.40-2,140.44

Finding the Fourth Proportional to 3,819.03, 5,270.40 and 2,140.44

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Solution

The fourth proportional to 3,819.03, 5,270.40 and 2,140.44 is: 2,953.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,819.03 : 5,270.40 = 2,140.44 : x
  2. Step 2: Convert to fraction form
    3,819.03/5,270.40 = 2,140.44/x
  3. Step 3: Cross multiply
    3,819.03x = 5,270.40 × 2,140.44
  4. Step 4: Simplify right side
    3,819.03x = 11,280,974.98
  5. Step 5: Solve for x
    x = 11,280,974.98/3,819.03
  6. Step 6: Final answer
    x = 2,953.88

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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.