Home / 2,855.25-4,279.23-1,623.24

Finding the Fourth Proportional to 2,855.25, 4,279.23 and 1,623.24

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Solution

The fourth proportional to 2,855.25, 4,279.23 and 1,623.24 is: 2,432.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,855.25 : 4,279.23 = 1,623.24 : x
  2. Step 2: Convert to fraction form
    2,855.25/4,279.23 = 1,623.24/x
  3. Step 3: Cross multiply
    2,855.25x = 4,279.23 × 1,623.24
  4. Step 4: Simplify right side
    2,855.25x = 6,946,217.31
  5. Step 5: Solve for x
    x = 6,946,217.31/2,855.25
  6. Step 6: Final answer
    x = 2,432.79

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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.