Home / 2,797.89-4,191.36-2,145.44

Finding the Fourth Proportional to 2,797.89, 4,191.36 and 2,145.44

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Solution

The fourth proportional to 2,797.89, 4,191.36 and 2,145.44 is: 3,213.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,797.89 : 4,191.36 = 2,145.44 : x
  2. Step 2: Convert to fraction form
    2,797.89/4,191.36 = 2,145.44/x
  3. Step 3: Cross multiply
    2,797.89x = 4,191.36 × 2,145.44
  4. Step 4: Simplify right side
    2,797.89x = 8,992,290.44
  5. Step 5: Solve for x
    x = 8,992,290.44/2,797.89
  6. Step 6: Final answer
    x = 3,213.95

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1.5x scale

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.