Home / 7,129.94-10,695.32-2,747.36

Finding the Fourth Proportional to 7,129.94, 10,695.32 and 2,747.36

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Solution

The fourth proportional to 7,129.94, 10,695.32 and 2,747.36 is: 4,121.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,129.94 : 10,695.32 = 2,747.36 : x
  2. Step 2: Convert to fraction form
    7,129.94/10,695.32 = 2,747.36/x
  3. Step 3: Cross multiply
    7,129.94x = 10,695.32 × 2,747.36
  4. Step 4: Simplify right side
    7,129.94x = 29,383,894.36
  5. Step 5: Solve for x
    x = 29,383,894.36/7,129.94
  6. Step 6: Final answer
    x = 4,121.20

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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.