Home / 3,311.12-4,968.77-1,851.23

Finding the Fourth Proportional to 3,311.12, 4,968.77 and 1,851.23

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Solution

The fourth proportional to 3,311.12, 4,968.77 and 1,851.23 is: 2,778.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,311.12 : 4,968.77 = 1,851.23 : x
  2. Step 2: Convert to fraction form
    3,311.12/4,968.77 = 1,851.23/x
  3. Step 3: Cross multiply
    3,311.12x = 4,968.77 × 1,851.23
  4. Step 4: Simplify right side
    3,311.12x = 9,198,316.51
  5. Step 5: Solve for x
    x = 9,198,316.51/3,311.12
  6. Step 6: Final answer
    x = 2,778.01

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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.