Home / 5,760.30-8,638.56-1,811.55

Finding the Fourth Proportional to 5,760.30, 8,638.56 and 1,811.55

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Solution

The fourth proportional to 5,760.30, 8,638.56 and 1,811.55 is: 2,716.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,760.30 : 8,638.56 = 1,811.55 : x
  2. Step 2: Convert to fraction form
    5,760.30/8,638.56 = 1,811.55/x
  3. Step 3: Cross multiply
    5,760.30x = 8,638.56 × 1,811.55
  4. Step 4: Simplify right side
    5,760.30x = 15,649,183.37
  5. Step 5: Solve for x
    x = 15,649,183.37/5,760.30
  6. Step 6: Final answer
    x = 2,716.73

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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.