Home / 3,982.21-5,495.22-2,303.68

Finding the Fourth Proportional to 3,982.21, 5,495.22 and 2,303.68

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Solution

The fourth proportional to 3,982.21, 5,495.22 and 2,303.68 is: 3,178.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,982.21 : 5,495.22 = 2,303.68 : x
  2. Step 2: Convert to fraction form
    3,982.21/5,495.22 = 2,303.68/x
  3. Step 3: Cross multiply
    3,982.21x = 5,495.22 × 2,303.68
  4. Step 4: Simplify right side
    3,982.21x = 12,659,228.41
  5. Step 5: Solve for x
    x = 12,659,228.41/3,982.21
  6. Step 6: Final answer
    x = 3,178.95

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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.