Home / 7,438.36-11,160.69-3,738.64

Finding the Fourth Proportional to 7,438.36, 11,160.69 and 3,738.64

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Solution

The fourth proportional to 7,438.36, 11,160.69 and 3,738.64 is: 5,609.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,438.36 : 11,160.69 = 3,738.64 : x
  2. Step 2: Convert to fraction form
    7,438.36/11,160.69 = 3,738.64/x
  3. Step 3: Cross multiply
    7,438.36x = 11,160.69 × 3,738.64
  4. Step 4: Simplify right side
    7,438.36x = 41,725,802.06
  5. Step 5: Solve for x
    x = 41,725,802.06/7,438.36
  6. Step 6: Final answer
    x = 5,609.54

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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.