Home / 5,445.76-8,163.36-2,157.76

Finding the Fourth Proportional to 5,445.76, 8,163.36 and 2,157.76

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Solution

The fourth proportional to 5,445.76, 8,163.36 and 2,157.76 is: 3,234.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,445.76 : 8,163.36 = 2,157.76 : x
  2. Step 2: Convert to fraction form
    5,445.76/8,163.36 = 2,157.76/x
  3. Step 3: Cross multiply
    5,445.76x = 8,163.36 × 2,157.76
  4. Step 4: Simplify right side
    5,445.76x = 17,614,571.67
  5. Step 5: Solve for x
    x = 17,614,571.67/5,445.76
  6. Step 6: Final answer
    x = 3,234.55

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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.