Home / 6,665.28-9,198.04-3,681.09

Finding the Fourth Proportional to 6,665.28, 9,198.04 and 3,681.09

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Solution

The fourth proportional to 6,665.28, 9,198.04 and 3,681.09 is: 5,079.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,665.28 : 9,198.04 = 3,681.09 : x
  2. Step 2: Convert to fraction form
    6,665.28/9,198.04 = 3,681.09/x
  3. Step 3: Cross multiply
    6,665.28x = 9,198.04 × 3,681.09
  4. Step 4: Simplify right side
    6,665.28x = 33,858,813.06
  5. Step 5: Solve for x
    x = 33,858,813.06/6,665.28
  6. Step 6: Final answer
    x = 5,079.88

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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.