Home / 2,678.75-4,022.59-1,806.87

Finding the Fourth Proportional to 2,678.75, 4,022.59 and 1,806.87

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Solution

The fourth proportional to 2,678.75, 4,022.59 and 1,806.87 is: 2,713.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,678.75 : 4,022.59 = 1,806.87 : x
  2. Step 2: Convert to fraction form
    2,678.75/4,022.59 = 1,806.87/x
  3. Step 3: Cross multiply
    2,678.75x = 4,022.59 × 1,806.87
  4. Step 4: Simplify right side
    2,678.75x = 7,268,292.68
  5. Step 5: Solve for x
    x = 7,268,292.68/2,678.75
  6. Step 6: Final answer
    x = 2,713.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.