Home / 3,106.44-4,281.12-2,111.76

Finding the Fourth Proportional to 3,106.44, 4,281.12 and 2,111.76

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Solution

The fourth proportional to 3,106.44, 4,281.12 and 2,111.76 is: 2,910.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,106.44 : 4,281.12 = 2,111.76 : x
  2. Step 2: Convert to fraction form
    3,106.44/4,281.12 = 2,111.76/x
  3. Step 3: Cross multiply
    3,106.44x = 4,281.12 × 2,111.76
  4. Step 4: Simplify right side
    3,106.44x = 9,040,697.97
  5. Step 5: Solve for x
    x = 9,040,697.97/3,106.44
  6. Step 6: Final answer
    x = 2,910.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.