Home / 6,912.88-10,369.28-2,751.78

Finding the Fourth Proportional to 6,912.88, 10,369.28 and 2,751.78

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Solution

The fourth proportional to 6,912.88, 10,369.28 and 2,751.78 is: 4,127.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,912.88 : 10,369.28 = 2,751.78 : x
  2. Step 2: Convert to fraction form
    6,912.88/10,369.28 = 2,751.78/x
  3. Step 3: Cross multiply
    6,912.88x = 10,369.28 × 2,751.78
  4. Step 4: Simplify right side
    6,912.88x = 28,533,977.32
  5. Step 5: Solve for x
    x = 28,533,977.32/6,912.88
  6. Step 6: Final answer
    x = 4,127.65

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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.