Home / 3,981.45-5,971.39-3,783.88

Finding the Fourth Proportional to 3,981.45, 5,971.39 and 3,783.88

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Solution

The fourth proportional to 3,981.45, 5,971.39 and 3,783.88 is: 5,675.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,981.45 : 5,971.39 = 3,783.88 : x
  2. Step 2: Convert to fraction form
    3,981.45/5,971.39 = 3,783.88/x
  3. Step 3: Cross multiply
    3,981.45x = 5,971.39 × 3,783.88
  4. Step 4: Simplify right side
    3,981.45x = 22,595,023.19
  5. Step 5: Solve for x
    x = 22,595,023.19/3,981.45
  6. Step 6: Final answer
    x = 5,675.07

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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.