Home / 2,231.93-3,081.36-1,393.71

Finding the Fourth Proportional to 2,231.93, 3,081.36 and 1,393.71

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Solution

The fourth proportional to 2,231.93, 3,081.36 and 1,393.71 is: 1,924.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,231.93 : 3,081.36 = 1,393.71 : x
  2. Step 2: Convert to fraction form
    2,231.93/3,081.36 = 1,393.71/x
  3. Step 3: Cross multiply
    2,231.93x = 3,081.36 × 1,393.71
  4. Step 4: Simplify right side
    2,231.93x = 4,294,522.25
  5. Step 5: Solve for x
    x = 4,294,522.25/2,231.93
  6. Step 6: Final answer
    x = 1,924.13

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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.