Home / 3,086.93-4,257.12-2,731.55

Finding the Fourth Proportional to 3,086.93, 4,257.12 and 2,731.55

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Solution

The fourth proportional to 3,086.93, 4,257.12 and 2,731.55 is: 3,767.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,086.93 : 4,257.12 = 2,731.55 : x
  2. Step 2: Convert to fraction form
    3,086.93/4,257.12 = 2,731.55/x
  3. Step 3: Cross multiply
    3,086.93x = 4,257.12 × 2,731.55
  4. Step 4: Simplify right side
    3,086.93x = 11,628,525.09
  5. Step 5: Solve for x
    x = 11,628,525.09/3,086.93
  6. Step 6: Final answer
    x = 3,767.02

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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.