Home / 3,812.46-5,719.15-1,346.78

Finding the Fourth Proportional to 3,812.46, 5,719.15 and 1,346.78

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Solution

The fourth proportional to 3,812.46, 5,719.15 and 1,346.78 is: 2,020.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,812.46 : 5,719.15 = 1,346.78 : x
  2. Step 2: Convert to fraction form
    3,812.46/5,719.15 = 1,346.78/x
  3. Step 3: Cross multiply
    3,812.46x = 5,719.15 × 1,346.78
  4. Step 4: Simplify right side
    3,812.46x = 7,702,424.44
  5. Step 5: Solve for x
    x = 7,702,424.44/3,812.46
  6. Step 6: Final answer
    x = 2,020.33

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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.