Home / 6,623.44-9,139.78-3,790.84

Finding the Fourth Proportional to 6,623.44, 9,139.78 and 3,790.84

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Solution

The fourth proportional to 6,623.44, 9,139.78 and 3,790.84 is: 5,231.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,623.44 : 9,139.78 = 3,790.84 : x
  2. Step 2: Convert to fraction form
    6,623.44/9,139.78 = 3,790.84/x
  3. Step 3: Cross multiply
    6,623.44x = 9,139.78 × 3,790.84
  4. Step 4: Simplify right side
    6,623.44x = 34,647,443.62
  5. Step 5: Solve for x
    x = 34,647,443.62/6,623.44
  6. Step 6: Final answer
    x = 5,231.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.