Home / 6,921.30-10,383.30-2,760.60

Finding the Fourth Proportional to 6,921.30, 10,383.30 and 2,760.60

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Solution

The fourth proportional to 6,921.30, 10,383.30 and 2,760.60 is: 4,141.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,921.30 : 10,383.30 = 2,760.60 : x
  2. Step 2: Convert to fraction form
    6,921.30/10,383.30 = 2,760.60/x
  3. Step 3: Cross multiply
    6,921.30x = 10,383.30 × 2,760.60
  4. Step 4: Simplify right side
    6,921.30x = 28,664,137.98
  5. Step 5: Solve for x
    x = 28,664,137.98/6,921.30
  6. Step 6: Final answer
    x = 4,141.44

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1.5x scale

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.