Home / 1,247.46-1,723.67-1,081.41

Finding the Fourth Proportional to 1,247.46, 1,723.67 and 1,081.41

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Solution

The fourth proportional to 1,247.46, 1,723.67 and 1,081.41 is: 1,494.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,247.46 : 1,723.67 = 1,081.41 : x
  2. Step 2: Convert to fraction form
    1,247.46/1,723.67 = 1,081.41/x
  3. Step 3: Cross multiply
    1,247.46x = 1,723.67 × 1,081.41
  4. Step 4: Simplify right side
    1,247.46x = 1,863,993.97
  5. Step 5: Solve for x
    x = 1,863,993.97/1,247.46
  6. Step 6: Final answer
    x = 1,494.23

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Half scale
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Double scale
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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.