Home / 2,974.24-4,106.32-1,912.48

Finding the Fourth Proportional to 2,974.24, 4,106.32 and 1,912.48

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Solution

The fourth proportional to 2,974.24, 4,106.32 and 1,912.48 is: 2,640.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,974.24 : 4,106.32 = 1,912.48 : x
  2. Step 2: Convert to fraction form
    2,974.24/4,106.32 = 1,912.48/x
  3. Step 3: Cross multiply
    2,974.24x = 4,106.32 × 1,912.48
  4. Step 4: Simplify right side
    2,974.24x = 7,853,254.87
  5. Step 5: Solve for x
    x = 7,853,254.87/2,974.24
  6. Step 6: Final answer
    x = 2,640.42

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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.