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Finding the Fourth Proportional to 3,021.88, 4,533.24 and 2,855.88

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Solution

The fourth proportional to 3,021.88, 4,533.24 and 2,855.88 is: 4,284.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,021.88 : 4,533.24 = 2,855.88 : x
  2. Step 2: Convert to fraction form
    3,021.88/4,533.24 = 2,855.88/x
  3. Step 3: Cross multiply
    3,021.88x = 4,533.24 × 2,855.88
  4. Step 4: Simplify right side
    3,021.88x = 12,946,389.45
  5. Step 5: Solve for x
    x = 12,946,389.45/3,021.88
  6. Step 6: Final answer
    x = 4,284.22

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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.