Home / 3,812.57-5,716.27-1,313.11

Finding the Fourth Proportional to 3,812.57, 5,716.27 and 1,313.11

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Solution

The fourth proportional to 3,812.57, 5,716.27 and 1,313.11 is: 1,968.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,812.57 : 5,716.27 = 1,313.11 : x
  2. Step 2: Convert to fraction form
    3,812.57/5,716.27 = 1,313.11/x
  3. Step 3: Cross multiply
    3,812.57x = 5,716.27 × 1,313.11
  4. Step 4: Simplify right side
    3,812.57x = 7,506,100.09
  5. Step 5: Solve for x
    x = 7,506,100.09/3,812.57
  6. Step 6: Final answer
    x = 1,968.78

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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.