Home / 2,728.14-4,090.41-2,239.98

Finding the Fourth Proportional to 2,728.14, 4,090.41 and 2,239.98

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Solution

The fourth proportional to 2,728.14, 4,090.41 and 2,239.98 is: 3,358.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,728.14 : 4,090.41 = 2,239.98 : x
  2. Step 2: Convert to fraction form
    2,728.14/4,090.41 = 2,239.98/x
  3. Step 3: Cross multiply
    2,728.14x = 4,090.41 × 2,239.98
  4. Step 4: Simplify right side
    2,728.14x = 9,162,436.59
  5. Step 5: Solve for x
    x = 9,162,436.59/2,728.14
  6. Step 6: Final answer
    x = 3,358.49

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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.