Home / 3,812.39-5,719.29-1,346.55

Finding the Fourth Proportional to 3,812.39, 5,719.29 and 1,346.55

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Solution

The fourth proportional to 3,812.39, 5,719.29 and 1,346.55 is: 2,020.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,812.39 : 5,719.29 = 1,346.55 : x
  2. Step 2: Convert to fraction form
    3,812.39/5,719.29 = 1,346.55/x
  3. Step 3: Cross multiply
    3,812.39x = 5,719.29 × 1,346.55
  4. Step 4: Simplify right side
    3,812.39x = 7,701,309.95
  5. Step 5: Solve for x
    x = 7,701,309.95/3,812.39
  6. Step 6: Final answer
    x = 2,020.07

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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.