Home / 3,812.05-5,717.87-1,214.79

Finding the Fourth Proportional to 3,812.05, 5,717.87 and 1,214.79

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Solution

The fourth proportional to 3,812.05, 5,717.87 and 1,214.79 is: 1,822.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,812.05 : 5,717.87 = 1,214.79 : x
  2. Step 2: Convert to fraction form
    3,812.05/5,717.87 = 1,214.79/x
  3. Step 3: Cross multiply
    3,812.05x = 5,717.87 × 1,214.79
  4. Step 4: Simplify right side
    3,812.05x = 6,946,011.30
  5. Step 5: Solve for x
    x = 6,946,011.30/3,812.05
  6. Step 6: Final answer
    x = 1,822.12

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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.