Home / 2,843.58-3,925.36-1,912.62

Finding the Fourth Proportional to 2,843.58, 3,925.36 and 1,912.62

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Solution

The fourth proportional to 2,843.58, 3,925.36 and 1,912.62 is: 2,640.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,843.58 : 3,925.36 = 1,912.62 : x
  2. Step 2: Convert to fraction form
    2,843.58/3,925.36 = 1,912.62/x
  3. Step 3: Cross multiply
    2,843.58x = 3,925.36 × 1,912.62
  4. Step 4: Simplify right side
    2,843.58x = 7,507,722.04
  5. Step 5: Solve for x
    x = 7,507,722.04/2,843.58
  6. Step 6: Final answer
    x = 2,640.24

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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.