Home / 5,514.96-7,611.30-3,125.64

Finding the Fourth Proportional to 5,514.96, 7,611.30 and 3,125.64

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Solution

The fourth proportional to 5,514.96, 7,611.30 and 3,125.64 is: 4,313.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,514.96 : 7,611.30 = 3,125.64 : x
  2. Step 2: Convert to fraction form
    5,514.96/7,611.30 = 3,125.64/x
  3. Step 3: Cross multiply
    5,514.96x = 7,611.30 × 3,125.64
  4. Step 4: Simplify right side
    5,514.96x = 23,790,183.73
  5. Step 5: Solve for x
    x = 23,790,183.73/5,514.96
  6. Step 6: Final answer
    x = 4,313.75

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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.