Home / 2,216.75-3,325.19-1,242.09

Finding the Fourth Proportional to 2,216.75, 3,325.19 and 1,242.09

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Solution

The fourth proportional to 2,216.75, 3,325.19 and 1,242.09 is: 1,863.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,216.75 : 3,325.19 = 1,242.09 : x
  2. Step 2: Convert to fraction form
    2,216.75/3,325.19 = 1,242.09/x
  3. Step 3: Cross multiply
    2,216.75x = 3,325.19 × 1,242.09
  4. Step 4: Simplify right side
    2,216.75x = 4,130,185.25
  5. Step 5: Solve for x
    x = 4,130,185.25/2,216.75
  6. Step 6: Final answer
    x = 1,863.17

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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.