Home / 6,939.63-9,576.72-3,795.78

Finding the Fourth Proportional to 6,939.63, 9,576.72 and 3,795.78

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Solution

The fourth proportional to 6,939.63, 9,576.72 and 3,795.78 is: 5,238.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,939.63 : 9,576.72 = 3,795.78 : x
  2. Step 2: Convert to fraction form
    6,939.63/9,576.72 = 3,795.78/x
  3. Step 3: Cross multiply
    6,939.63x = 9,576.72 × 3,795.78
  4. Step 4: Simplify right side
    6,939.63x = 36,351,122.24
  5. Step 5: Solve for x
    x = 36,351,122.24/6,939.63
  6. Step 6: Final answer
    x = 5,238.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.