Home / 2,231.41-3,079.37-1,236.71

Finding the Fourth Proportional to 2,231.41, 3,079.37 and 1,236.71

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Solution

The fourth proportional to 2,231.41, 3,079.37 and 1,236.71 is: 1,706.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,231.41 : 3,079.37 = 1,236.71 : x
  2. Step 2: Convert to fraction form
    2,231.41/3,079.37 = 1,236.71/x
  3. Step 3: Cross multiply
    2,231.41x = 3,079.37 × 1,236.71
  4. Step 4: Simplify right side
    2,231.41x = 3,808,266.09
  5. Step 5: Solve for x
    x = 3,808,266.09/2,231.41
  6. Step 6: Final answer
    x = 1,706.67

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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.