Home / 3,311.84-4,968.37-1,090.80

Finding the Fourth Proportional to 3,311.84, 4,968.37 and 1,090.80

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Solution

The fourth proportional to 3,311.84, 4,968.37 and 1,090.80 is: 1,636.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,311.84 : 4,968.37 = 1,090.80 : x
  2. Step 2: Convert to fraction form
    3,311.84/4,968.37 = 1,090.80/x
  3. Step 3: Cross multiply
    3,311.84x = 4,968.37 × 1,090.80
  4. Step 4: Simplify right side
    3,311.84x = 5,419,498.00
  5. Step 5: Solve for x
    x = 5,419,498.00/3,311.84
  6. Step 6: Final answer
    x = 1,636.40

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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.