Home / 3,819.33-5,270.49-2,140.92

Finding the Fourth Proportional to 3,819.33, 5,270.49 and 2,140.92

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Solution

The fourth proportional to 3,819.33, 5,270.49 and 2,140.92 is: 2,954.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,819.33 : 5,270.49 = 2,140.92 : x
  2. Step 2: Convert to fraction form
    3,819.33/5,270.49 = 2,140.92/x
  3. Step 3: Cross multiply
    3,819.33x = 5,270.49 × 2,140.92
  4. Step 4: Simplify right side
    3,819.33x = 11,283,697.45
  5. Step 5: Solve for x
    x = 11,283,697.45/3,819.33
  6. Step 6: Final answer
    x = 2,954.37

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Double scale
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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.