Home / 2,231.23-3,079.15-1,236.62

Finding the Fourth Proportional to 2,231.23, 3,079.15 and 1,236.62

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Solution

The fourth proportional to 2,231.23, 3,079.15 and 1,236.62 is: 1,706.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,231.23 : 3,079.15 = 1,236.62 : x
  2. Step 2: Convert to fraction form
    2,231.23/3,079.15 = 1,236.62/x
  3. Step 3: Cross multiply
    2,231.23x = 3,079.15 × 1,236.62
  4. Step 4: Simplify right side
    2,231.23x = 3,807,723.08
  5. Step 5: Solve for x
    x = 3,807,723.08/2,231.23
  6. Step 6: Final answer
    x = 1,706.56

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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.