Home / 3,993.60-5,986.66-1,528.57

Finding the Fourth Proportional to 3,993.60, 5,986.66 and 1,528.57

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Solution

The fourth proportional to 3,993.60, 5,986.66 and 1,528.57 is: 2,291.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,993.60 : 5,986.66 = 1,528.57 : x
  2. Step 2: Convert to fraction form
    3,993.60/5,986.66 = 1,528.57/x
  3. Step 3: Cross multiply
    3,993.60x = 5,986.66 × 1,528.57
  4. Step 4: Simplify right side
    3,993.60x = 9,151,028.88
  5. Step 5: Solve for x
    x = 9,151,028.88/3,993.60
  6. Step 6: Final answer
    x = 2,291.42

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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.