Home / 3,812.28-5,717.61-1,214.61

Finding the Fourth Proportional to 3,812.28, 5,717.61 and 1,214.61

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Solution

The fourth proportional to 3,812.28, 5,717.61 and 1,214.61 is: 1,821.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,812.28 : 5,717.61 = 1,214.61 : x
  2. Step 2: Convert to fraction form
    3,812.28/5,717.61 = 1,214.61/x
  3. Step 3: Cross multiply
    3,812.28x = 5,717.61 × 1,214.61
  4. Step 4: Simplify right side
    3,812.28x = 6,944,666.28
  5. Step 5: Solve for x
    x = 6,944,666.28/3,812.28
  6. Step 6: Final answer
    x = 1,821.66

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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.