Home / 5,435.55-8,149.68-2,147.76

Finding the Fourth Proportional to 5,435.55, 8,149.68 and 2,147.76

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Solution

The fourth proportional to 5,435.55, 8,149.68 and 2,147.76 is: 3,220.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,435.55 : 8,149.68 = 2,147.76 : x
  2. Step 2: Convert to fraction form
    5,435.55/8,149.68 = 2,147.76/x
  3. Step 3: Cross multiply
    5,435.55x = 8,149.68 × 2,147.76
  4. Step 4: Simplify right side
    5,435.55x = 17,503,556.72
  5. Step 5: Solve for x
    x = 17,503,556.72/5,435.55
  6. Step 6: Final answer
    x = 3,220.20

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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.