Home / 6,812.71-10,214.81-2,131.36

Finding the Fourth Proportional to 6,812.71, 10,214.81 and 2,131.36

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Solution

The fourth proportional to 6,812.71, 10,214.81 and 2,131.36 is: 3,195.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,812.71 : 10,214.81 = 2,131.36 : x
  2. Step 2: Convert to fraction form
    6,812.71/10,214.81 = 2,131.36/x
  3. Step 3: Cross multiply
    6,812.71x = 10,214.81 × 2,131.36
  4. Step 4: Simplify right side
    6,812.71x = 21,771,466.70
  5. Step 5: Solve for x
    x = 21,771,466.70/6,812.71
  6. Step 6: Final answer
    x = 3,195.71

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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.