Home / 5,120.55-7,669.89-3,166.83

Finding the Fourth Proportional to 5,120.55, 7,669.89 and 3,166.83

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Solution

The fourth proportional to 5,120.55, 7,669.89 and 3,166.83 is: 4,743.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,120.55 : 7,669.89 = 3,166.83 : x
  2. Step 2: Convert to fraction form
    5,120.55/7,669.89 = 3,166.83/x
  3. Step 3: Cross multiply
    5,120.55x = 7,669.89 × 3,166.83
  4. Step 4: Simplify right side
    5,120.55x = 24,289,237.75
  5. Step 5: Solve for x
    x = 24,289,237.75/5,120.55
  6. Step 6: Final answer
    x = 4,743.48

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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.