Home / 7,812.69-11,720.94-2,265.91

Finding the Fourth Proportional to 7,812.69, 11,720.94 and 2,265.91

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Solution

The fourth proportional to 7,812.69, 11,720.94 and 2,265.91 is: 3,399.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,812.69 : 11,720.94 = 2,265.91 : x
  2. Step 2: Convert to fraction form
    7,812.69/11,720.94 = 2,265.91/x
  3. Step 3: Cross multiply
    7,812.69x = 11,720.94 × 2,265.91
  4. Step 4: Simplify right side
    7,812.69x = 26,558,583.83
  5. Step 5: Solve for x
    x = 26,558,583.83/7,812.69
  6. Step 6: Final answer
    x = 3,399.42

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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.