Home / 3,011.07-4,516.47-819.81

Finding the Fourth Proportional to 3,011.07, 4,516.47 and 819.81

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Solution

The fourth proportional to 3,011.07, 4,516.47 and 819.81 is: 1,229.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,011.07 : 4,516.47 = 819.81 : x
  2. Step 2: Convert to fraction form
    3,011.07/4,516.47 = 819.81/x
  3. Step 3: Cross multiply
    3,011.07x = 4,516.47 × 819.81
  4. Step 4: Simplify right side
    3,011.07x = 3,702,647.27
  5. Step 5: Solve for x
    x = 3,702,647.27/3,011.07
  6. Step 6: Final answer
    x = 1,229.68

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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.