Home / 6,665.38-9,198.22-3,681.21

Finding the Fourth Proportional to 6,665.38, 9,198.22 and 3,681.21

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Solution

The fourth proportional to 6,665.38, 9,198.22 and 3,681.21 is: 5,080.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,665.38 : 9,198.22 = 3,681.21 : x
  2. Step 2: Convert to fraction form
    6,665.38/9,198.22 = 3,681.21/x
  3. Step 3: Cross multiply
    6,665.38x = 9,198.22 × 3,681.21
  4. Step 4: Simplify right side
    6,665.38x = 33,860,578.01
  5. Step 5: Solve for x
    x = 33,860,578.01/6,665.38
  6. Step 6: Final answer
    x = 5,080.07

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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.