Home / 5,284.43-7,919.86-1,993.60

Finding the Fourth Proportional to 5,284.43, 7,919.86 and 1,993.60

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Solution

The fourth proportional to 5,284.43, 7,919.86 and 1,993.60 is: 2,987.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,284.43 : 7,919.86 = 1,993.60 : x
  2. Step 2: Convert to fraction form
    5,284.43/7,919.86 = 1,993.60/x
  3. Step 3: Cross multiply
    5,284.43x = 7,919.86 × 1,993.60
  4. Step 4: Simplify right side
    5,284.43x = 15,789,032.90
  5. Step 5: Solve for x
    x = 15,789,032.90/5,284.43
  6. Step 6: Final answer
    x = 2,987.84

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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.