Home / 2,922.24-4,381.20-2,611.20

Finding the Fourth Proportional to 2,922.24, 4,381.20 and 2,611.20

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Solution

The fourth proportional to 2,922.24, 4,381.20 and 2,611.20 is: 3,914.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,922.24 : 4,381.20 = 2,611.20 : x
  2. Step 2: Convert to fraction form
    2,922.24/4,381.20 = 2,611.20/x
  3. Step 3: Cross multiply
    2,922.24x = 4,381.20 × 2,611.20
  4. Step 4: Simplify right side
    2,922.24x = 11,440,189.44
  5. Step 5: Solve for x
    x = 11,440,189.44/2,922.24
  6. Step 6: Final answer
    x = 3,914.87

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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.