Home / 3,086.46-4,257.96-2,091.39

Finding the Fourth Proportional to 3,086.46, 4,257.96 and 2,091.39

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Solution

The fourth proportional to 3,086.46, 4,257.96 and 2,091.39 is: 2,885.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,086.46 : 4,257.96 = 2,091.39 : x
  2. Step 2: Convert to fraction form
    3,086.46/4,257.96 = 2,091.39/x
  3. Step 3: Cross multiply
    3,086.46x = 4,257.96 × 2,091.39
  4. Step 4: Simplify right side
    3,086.46x = 8,905,054.96
  5. Step 5: Solve for x
    x = 8,905,054.96/3,086.46
  6. Step 6: Final answer
    x = 2,885.20

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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.