Home / 1,874.26-2,584.08-1,283.78

Finding the Fourth Proportional to 1,874.26, 2,584.08 and 1,283.78

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Solution

The fourth proportional to 1,874.26, 2,584.08 and 1,283.78 is: 1,769.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,874.26 : 2,584.08 = 1,283.78 : x
  2. Step 2: Convert to fraction form
    1,874.26/2,584.08 = 1,283.78/x
  3. Step 3: Cross multiply
    1,874.26x = 2,584.08 × 1,283.78
  4. Step 4: Simplify right side
    1,874.26x = 3,317,390.22
  5. Step 5: Solve for x
    x = 3,317,390.22/1,874.26
  6. Step 6: Final answer
    x = 1,769.97

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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.