Home / 3,968.10-5,955.39-2,120.49

Finding the Fourth Proportional to 3,968.10, 5,955.39 and 2,120.49

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Solution

The fourth proportional to 3,968.10, 5,955.39 and 2,120.49 is: 3,182.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,968.10 : 5,955.39 = 2,120.49 : x
  2. Step 2: Convert to fraction form
    3,968.10/5,955.39 = 2,120.49/x
  3. Step 3: Cross multiply
    3,968.10x = 5,955.39 × 2,120.49
  4. Step 4: Simplify right side
    3,968.10x = 12,628,344.94
  5. Step 5: Solve for x
    x = 12,628,344.94/3,968.10
  6. Step 6: Final answer
    x = 3,182.47

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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.