Home / 5,828-8,040.36-3,839.60

Finding the Fourth Proportional to 5,828, 8,040.36 and 3,839.60

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Solution

The fourth proportional to 5,828, 8,040.36 and 3,839.60 is: 5,297.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,828 : 8,040.36 = 3,839.60 : x
  2. Step 2: Convert to fraction form
    5,828/8,040.36 = 3,839.60/x
  3. Step 3: Cross multiply
    5,828x = 8,040.36 × 3,839.60
  4. Step 4: Simplify right side
    5,828x = 30,871,766.26
  5. Step 5: Solve for x
    x = 30,871,766.26/5,828
  6. Step 6: Final answer
    x = 5,297.15

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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.