Home / 3,220.85-4,817.12-2,803.97

Finding the Fourth Proportional to 3,220.85, 4,817.12 and 2,803.97

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Solution

The fourth proportional to 3,220.85, 4,817.12 and 2,803.97 is: 4,193.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,220.85 : 4,817.12 = 2,803.97 : x
  2. Step 2: Convert to fraction form
    3,220.85/4,817.12 = 2,803.97/x
  3. Step 3: Cross multiply
    3,220.85x = 4,817.12 × 2,803.97
  4. Step 4: Simplify right side
    3,220.85x = 13,507,021.86
  5. Step 5: Solve for x
    x = 13,507,021.86/3,220.85
  6. Step 6: Final answer
    x = 4,193.63

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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.