Home / 2,291.93-3,162.86-1,243.99

Finding the Fourth Proportional to 2,291.93, 3,162.86 and 1,243.99

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Solution

The fourth proportional to 2,291.93, 3,162.86 and 1,243.99 is: 1,716.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,291.93 : 3,162.86 = 1,243.99 : x
  2. Step 2: Convert to fraction form
    2,291.93/3,162.86 = 1,243.99/x
  3. Step 3: Cross multiply
    2,291.93x = 3,162.86 × 1,243.99
  4. Step 4: Simplify right side
    2,291.93x = 3,934,566.21
  5. Step 5: Solve for x
    x = 3,934,566.21/2,291.93
  6. Step 6: Final answer
    x = 1,716.71

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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.