Home / 6,112.20-9,169.80-1,729.60

Finding the Fourth Proportional to 6,112.20, 9,169.80 and 1,729.60

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Solution

The fourth proportional to 6,112.20, 9,169.80 and 1,729.60 is: 2,594.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,112.20 : 9,169.80 = 1,729.60 : x
  2. Step 2: Convert to fraction form
    6,112.20/9,169.80 = 1,729.60/x
  3. Step 3: Cross multiply
    6,112.20x = 9,169.80 × 1,729.60
  4. Step 4: Simplify right side
    6,112.20x = 15,860,086.08
  5. Step 5: Solve for x
    x = 15,860,086.08/6,112.20
  6. Step 6: Final answer
    x = 2,594.82

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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.