Home / 4,781.89-7,172.83-2,007.81

Finding the Fourth Proportional to 4,781.89, 7,172.83 and 2,007.81

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Solution

The fourth proportional to 4,781.89, 7,172.83 and 2,007.81 is: 3,011.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,781.89 : 7,172.83 = 2,007.81 : x
  2. Step 2: Convert to fraction form
    4,781.89/7,172.83 = 2,007.81/x
  3. Step 3: Cross multiply
    4,781.89x = 7,172.83 × 2,007.81
  4. Step 4: Simplify right side
    4,781.89x = 14,401,679.80
  5. Step 5: Solve for x
    x = 14,401,679.80/4,781.89
  6. Step 6: Final answer
    x = 3,011.71

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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.