Home / 6,665.14-9,198.01-3,680.79

Finding the Fourth Proportional to 6,665.14, 9,198.01 and 3,680.79

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Solution

The fourth proportional to 6,665.14, 9,198.01 and 3,680.79 is: 5,079.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,665.14 : 9,198.01 = 3,680.79 : x
  2. Step 2: Convert to fraction form
    6,665.14/9,198.01 = 3,680.79/x
  3. Step 3: Cross multiply
    6,665.14x = 9,198.01 × 3,680.79
  4. Step 4: Simplify right side
    6,665.14x = 33,855,943.23
  5. Step 5: Solve for x
    x = 33,855,943.23/6,665.14
  6. Step 6: Final answer
    x = 5,079.55

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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.