Home / 2,218.33-3,325.93-985.07

Finding the Fourth Proportional to 2,218.33, 3,325.93 and 985.07

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Solution

The fourth proportional to 2,218.33, 3,325.93 and 985.07 is: 1,476.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,218.33 : 3,325.93 = 985.07 : x
  2. Step 2: Convert to fraction form
    2,218.33/3,325.93 = 985.07/x
  3. Step 3: Cross multiply
    2,218.33x = 3,325.93 × 985.07
  4. Step 4: Simplify right side
    2,218.33x = 3,276,273.87
  5. Step 5: Solve for x
    x = 3,276,273.87/2,218.33
  6. Step 6: Final answer
    x = 1,476.91

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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.