Home / 3,812.38-5,717.35-1,214.71

Finding the Fourth Proportional to 3,812.38, 5,717.35 and 1,214.71

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Solution

The fourth proportional to 3,812.38, 5,717.35 and 1,214.71 is: 1,821.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,812.38 : 5,717.35 = 1,214.71 : x
  2. Step 2: Convert to fraction form
    3,812.38/5,717.35 = 1,214.71/x
  3. Step 3: Cross multiply
    3,812.38x = 5,717.35 × 1,214.71
  4. Step 4: Simplify right side
    3,812.38x = 6,944,922.22
  5. Step 5: Solve for x
    x = 6,944,922.22/3,812.38
  6. Step 6: Final answer
    x = 1,821.68

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1.5x scale

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.