Home / 6,872.78-10,308.65-2,192.60

Finding the Fourth Proportional to 6,872.78, 10,308.65 and 2,192.60

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Solution

The fourth proportional to 6,872.78, 10,308.65 and 2,192.60 is: 3,288.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,872.78 : 10,308.65 = 2,192.60 : x
  2. Step 2: Convert to fraction form
    6,872.78/10,308.65 = 2,192.60/x
  3. Step 3: Cross multiply
    6,872.78x = 10,308.65 × 2,192.60
  4. Step 4: Simplify right side
    6,872.78x = 22,602,745.99
  5. Step 5: Solve for x
    x = 22,602,745.99/6,872.78
  6. Step 6: Final answer
    x = 3,288.73

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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.