Home / 3,982.76-5,972.38-2,133.56

Finding the Fourth Proportional to 3,982.76, 5,972.38 and 2,133.56

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Solution

The fourth proportional to 3,982.76, 5,972.38 and 2,133.56 is: 3,199.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,982.76 : 5,972.38 = 2,133.56 : x
  2. Step 2: Convert to fraction form
    3,982.76/5,972.38 = 2,133.56/x
  3. Step 3: Cross multiply
    3,982.76x = 5,972.38 × 2,133.56
  4. Step 4: Simplify right side
    3,982.76x = 12,742,431.07
  5. Step 5: Solve for x
    x = 12,742,431.07/3,982.76
  6. Step 6: Final answer
    x = 3,199.40

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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.