Home / 3,819.33-5,270.93-2,140.68

Finding the Fourth Proportional to 3,819.33, 5,270.93 and 2,140.68

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Solution

The fourth proportional to 3,819.33, 5,270.93 and 2,140.68 is: 2,954.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,819.33 : 5,270.93 = 2,140.68 : x
  2. Step 2: Convert to fraction form
    3,819.33/5,270.93 = 2,140.68/x
  3. Step 3: Cross multiply
    3,819.33x = 5,270.93 × 2,140.68
  4. Step 4: Simplify right side
    3,819.33x = 11,283,374.43
  5. Step 5: Solve for x
    x = 11,283,374.43/3,819.33
  6. Step 6: Final answer
    x = 2,954.28

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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.