Home / 7,629.20-11,443.80-2,698.80

Finding the Fourth Proportional to 7,629.20, 11,443.80 and 2,698.80

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Solution

The fourth proportional to 7,629.20, 11,443.80 and 2,698.80 is: 4,048.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,629.20 : 11,443.80 = 2,698.80 : x
  2. Step 2: Convert to fraction form
    7,629.20/11,443.80 = 2,698.80/x
  3. Step 3: Cross multiply
    7,629.20x = 11,443.80 × 2,698.80
  4. Step 4: Simplify right side
    7,629.20x = 30,884,527.44
  5. Step 5: Solve for x
    x = 30,884,527.44/7,629.20
  6. Step 6: Final answer
    x = 4,048.20

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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.