Home / 3,157.94-4,738.43-1,426.42

Finding the Fourth Proportional to 3,157.94, 4,738.43 and 1,426.42

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Solution

The fourth proportional to 3,157.94, 4,738.43 and 1,426.42 is: 2,140.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,157.94 : 4,738.43 = 1,426.42 : x
  2. Step 2: Convert to fraction form
    3,157.94/4,738.43 = 1,426.42/x
  3. Step 3: Cross multiply
    3,157.94x = 4,738.43 × 1,426.42
  4. Step 4: Simplify right side
    3,157.94x = 6,758,991.32
  5. Step 5: Solve for x
    x = 6,758,991.32/3,157.94
  6. Step 6: Final answer
    x = 2,140.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.