Home / 7,721.36-11,583.12-3,104

Finding the Fourth Proportional to 7,721.36, 11,583.12 and 3,104

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Solution

The fourth proportional to 7,721.36, 11,583.12 and 3,104 is: 4,656.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,721.36 : 11,583.12 = 3,104 : x
  2. Step 2: Convert to fraction form
    7,721.36/11,583.12 = 3,104/x
  3. Step 3: Cross multiply
    7,721.36x = 11,583.12 × 3,104
  4. Step 4: Simplify right side
    7,721.36x = 35,954,004.48
  5. Step 5: Solve for x
    x = 35,954,004.48/7,721.36
  6. Step 6: Final answer
    x = 4,656.43

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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.