Home / 2,728-3,764.64-1,486.08

Finding the Fourth Proportional to 2,728, 3,764.64 and 1,486.08

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Solution

The fourth proportional to 2,728, 3,764.64 and 1,486.08 is: 2,050.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,728 : 3,764.64 = 1,486.08 : x
  2. Step 2: Convert to fraction form
    2,728/3,764.64 = 1,486.08/x
  3. Step 3: Cross multiply
    2,728x = 3,764.64 × 1,486.08
  4. Step 4: Simplify right side
    2,728x = 5,594,556.21
  5. Step 5: Solve for x
    x = 5,594,556.21/2,728
  6. Step 6: Final answer
    x = 2,050.79

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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.