Home / 3,719.29-5,581.74-1,380.73

Finding the Fourth Proportional to 3,719.29, 5,581.74 and 1,380.73

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Solution

The fourth proportional to 3,719.29, 5,581.74 and 1,380.73 is: 2,072.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,719.29 : 5,581.74 = 1,380.73 : x
  2. Step 2: Convert to fraction form
    3,719.29/5,581.74 = 1,380.73/x
  3. Step 3: Cross multiply
    3,719.29x = 5,581.74 × 1,380.73
  4. Step 4: Simplify right side
    3,719.29x = 7,706,875.87
  5. Step 5: Solve for x
    x = 7,706,875.87/3,719.29
  6. Step 6: Final answer
    x = 2,072.14

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.