Home / 3,164.28-4,751.26-2,111.68

Finding the Fourth Proportional to 3,164.28, 4,751.26 and 2,111.68

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Solution

The fourth proportional to 3,164.28, 4,751.26 and 2,111.68 is: 3,170.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,164.28 : 4,751.26 = 2,111.68 : x
  2. Step 2: Convert to fraction form
    3,164.28/4,751.26 = 2,111.68/x
  3. Step 3: Cross multiply
    3,164.28x = 4,751.26 × 2,111.68
  4. Step 4: Simplify right side
    3,164.28x = 10,033,140.72
  5. Step 5: Solve for x
    x = 10,033,140.72/3,164.28
  6. Step 6: Final answer
    x = 3,170.75

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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.