Home / 6,921.32-10,375.58-2,760.31

Finding the Fourth Proportional to 6,921.32, 10,375.58 and 2,760.31

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Solution

The fourth proportional to 6,921.32, 10,375.58 and 2,760.31 is: 4,137.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,921.32 : 10,375.58 = 2,760.31 : x
  2. Step 2: Convert to fraction form
    6,921.32/10,375.58 = 2,760.31/x
  3. Step 3: Cross multiply
    6,921.32x = 10,375.58 × 2,760.31
  4. Step 4: Simplify right side
    6,921.32x = 28,639,836.27
  5. Step 5: Solve for x
    x = 28,639,836.27/6,921.32
  6. Step 6: Final answer
    x = 4,137.92

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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.