Home / 3,981.60-5,968.62-1,383.84

Finding the Fourth Proportional to 3,981.60, 5,968.62 and 1,383.84

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Solution

The fourth proportional to 3,981.60, 5,968.62 and 1,383.84 is: 2,074.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,981.60 : 5,968.62 = 1,383.84 : x
  2. Step 2: Convert to fraction form
    3,981.60/5,968.62 = 1,383.84/x
  3. Step 3: Cross multiply
    3,981.60x = 5,968.62 × 1,383.84
  4. Step 4: Simplify right side
    3,981.60x = 8,259,615.10
  5. Step 5: Solve for x
    x = 8,259,615.10/3,981.60
  6. Step 6: Final answer
    x = 2,074.45

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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.