Home / 3,974.16-5,967.99-3,315.36

Finding the Fourth Proportional to 3,974.16, 5,967.99 and 3,315.36

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Solution

The fourth proportional to 3,974.16, 5,967.99 and 3,315.36 is: 4,978.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,974.16 : 5,967.99 = 3,315.36 : x
  2. Step 2: Convert to fraction form
    3,974.16/5,967.99 = 3,315.36/x
  3. Step 3: Cross multiply
    3,974.16x = 5,967.99 × 3,315.36
  4. Step 4: Simplify right side
    3,974.16x = 19,786,035.33
  5. Step 5: Solve for x
    x = 19,786,035.33/3,974.16
  6. Step 6: Final answer
    x = 4,978.67

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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.