Home / 3,981.21-5,493.84-2,302.68

Finding the Fourth Proportional to 3,981.21, 5,493.84 and 2,302.68

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Solution

The fourth proportional to 3,981.21, 5,493.84 and 2,302.68 is: 3,177.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,981.21 : 5,493.84 = 2,302.68 : x
  2. Step 2: Convert to fraction form
    3,981.21/5,493.84 = 2,302.68/x
  3. Step 3: Cross multiply
    3,981.21x = 5,493.84 × 2,302.68
  4. Step 4: Simplify right side
    3,981.21x = 12,650,555.49
  5. Step 5: Solve for x
    x = 12,650,555.49/3,981.21
  6. Step 6: Final answer
    x = 3,177.57

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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.