Home / 2,728.92-3,768.03-2,098.47

Finding the Fourth Proportional to 2,728.92, 3,768.03 and 2,098.47

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Solution

The fourth proportional to 2,728.92, 3,768.03 and 2,098.47 is: 2,897.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,728.92 : 3,768.03 = 2,098.47 : x
  2. Step 2: Convert to fraction form
    2,728.92/3,768.03 = 2,098.47/x
  3. Step 3: Cross multiply
    2,728.92x = 3,768.03 × 2,098.47
  4. Step 4: Simplify right side
    2,728.92x = 7,907,097.91
  5. Step 5: Solve for x
    x = 7,907,097.91/2,728.92
  6. Step 6: Final answer
    x = 2,897.52

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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.