Home / 6,278.72-8,658.60-3,760.44

Finding the Fourth Proportional to 6,278.72, 8,658.60 and 3,760.44

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Solution

The fourth proportional to 6,278.72, 8,658.60 and 3,760.44 is: 5,185.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,278.72 : 8,658.60 = 3,760.44 : x
  2. Step 2: Convert to fraction form
    6,278.72/8,658.60 = 3,760.44/x
  3. Step 3: Cross multiply
    6,278.72x = 8,658.60 × 3,760.44
  4. Step 4: Simplify right side
    6,278.72x = 32,560,145.78
  5. Step 5: Solve for x
    x = 32,560,145.78/6,278.72
  6. Step 6: Final answer
    x = 5,185.79

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1.5x scale

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.