Home / 3,211.98-4,422.24-2,797.80

Finding the Fourth Proportional to 3,211.98, 4,422.24 and 2,797.80

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Solution

The fourth proportional to 3,211.98, 4,422.24 and 2,797.80 is: 3,852.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,211.98 : 4,422.24 = 2,797.80 : x
  2. Step 2: Convert to fraction form
    3,211.98/4,422.24 = 2,797.80/x
  3. Step 3: Cross multiply
    3,211.98x = 4,422.24 × 2,797.80
  4. Step 4: Simplify right side
    3,211.98x = 12,372,543.07
  5. Step 5: Solve for x
    x = 12,372,543.07/3,211.98
  6. Step 6: Final answer
    x = 3,852.00

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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.