Home / 3,981.88-5,493.99-2,409.67

Finding the Fourth Proportional to 3,981.88, 5,493.99 and 2,409.67

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Solution

The fourth proportional to 3,981.88, 5,493.99 and 2,409.67 is: 3,324.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,981.88 : 5,493.99 = 2,409.67 : x
  2. Step 2: Convert to fraction form
    3,981.88/5,493.99 = 2,409.67/x
  3. Step 3: Cross multiply
    3,981.88x = 5,493.99 × 2,409.67
  4. Step 4: Simplify right side
    3,981.88x = 13,238,702.88
  5. Step 5: Solve for x
    x = 13,238,702.88/3,981.88
  6. Step 6: Final answer
    x = 3,324.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.