Home / 2,236.86-3,087.14-1,292.81

Finding the Fourth Proportional to 2,236.86, 3,087.14 and 1,292.81

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Solution

The fourth proportional to 2,236.86, 3,087.14 and 1,292.81 is: 1,784.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,236.86 : 3,087.14 = 1,292.81 : x
  2. Step 2: Convert to fraction form
    2,236.86/3,087.14 = 1,292.81/x
  3. Step 3: Cross multiply
    2,236.86x = 3,087.14 × 1,292.81
  4. Step 4: Simplify right side
    2,236.86x = 3,991,063.56
  5. Step 5: Solve for x
    x = 3,991,063.56/2,236.86
  6. Step 6: Final answer
    x = 1,784.23

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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.