Home / 2,974.15-4,104.19-1,647.84

Finding the Fourth Proportional to 2,974.15, 4,104.19 and 1,647.84

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Solution

The fourth proportional to 2,974.15, 4,104.19 and 1,647.84 is: 2,273.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,974.15 : 4,104.19 = 1,647.84 : x
  2. Step 2: Convert to fraction form
    2,974.15/4,104.19 = 1,647.84/x
  3. Step 3: Cross multiply
    2,974.15x = 4,104.19 × 1,647.84
  4. Step 4: Simplify right side
    2,974.15x = 6,763,040.21
  5. Step 5: Solve for x
    x = 6,763,040.21/2,974.15
  6. Step 6: Final answer
    x = 2,273.94

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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.