Home / 3,168.88-4,375.74-2,381.56

Finding the Fourth Proportional to 3,168.88, 4,375.74 and 2,381.56

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Solution

The fourth proportional to 3,168.88, 4,375.74 and 2,381.56 is: 3,288.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,168.88 : 4,375.74 = 2,381.56 : x
  2. Step 2: Convert to fraction form
    3,168.88/4,375.74 = 2,381.56/x
  3. Step 3: Cross multiply
    3,168.88x = 4,375.74 × 2,381.56
  4. Step 4: Simplify right side
    3,168.88x = 10,421,087.35
  5. Step 5: Solve for x
    x = 10,421,087.35/3,168.88
  6. Step 6: Final answer
    x = 3,288.57

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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.