Home / 2,218.37-3,325.46-985.95

Finding the Fourth Proportional to 2,218.37, 3,325.46 and 985.95

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Solution

The fourth proportional to 2,218.37, 3,325.46 and 985.95 is: 1,477.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,218.37 : 3,325.46 = 985.95 : x
  2. Step 2: Convert to fraction form
    2,218.37/3,325.46 = 985.95/x
  3. Step 3: Cross multiply
    2,218.37x = 3,325.46 × 985.95
  4. Step 4: Simplify right side
    2,218.37x = 3,278,732.36
  5. Step 5: Solve for x
    x = 3,278,732.36/2,218.37
  6. Step 6: Final answer
    x = 1,477.99

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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.