Home / 2,974.38-4,104.78-1,648.08

Finding the Fourth Proportional to 2,974.38, 4,104.78 and 1,648.08

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Solution

The fourth proportional to 2,974.38, 4,104.78 and 1,648.08 is: 2,274.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,974.38 : 4,104.78 = 1,648.08 : x
  2. Step 2: Convert to fraction form
    2,974.38/4,104.78 = 1,648.08/x
  3. Step 3: Cross multiply
    2,974.38x = 4,104.78 × 1,648.08
  4. Step 4: Simplify right side
    2,974.38x = 6,765,005.82
  5. Step 5: Solve for x
    x = 6,765,005.82/2,974.38
  6. Step 6: Final answer
    x = 2,274.43

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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.