Home / 3,885.26-5,828.49-1,287.59

Finding the Fourth Proportional to 3,885.26, 5,828.49 and 1,287.59

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Solution

The fourth proportional to 3,885.26, 5,828.49 and 1,287.59 is: 1,931.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,885.26 : 5,828.49 = 1,287.59 : x
  2. Step 2: Convert to fraction form
    3,885.26/5,828.49 = 1,287.59/x
  3. Step 3: Cross multiply
    3,885.26x = 5,828.49 × 1,287.59
  4. Step 4: Simplify right side
    3,885.26x = 7,504,676.30
  5. Step 5: Solve for x
    x = 7,504,676.30/3,885.26
  6. Step 6: Final answer
    x = 1,931.58

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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.