Home / 2,212.84-3,054-1,281.16

Finding the Fourth Proportional to 2,212.84, 3,054 and 1,281.16

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Solution

The fourth proportional to 2,212.84, 3,054 and 1,281.16 is: 1,768.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,212.84 : 3,054 = 1,281.16 : x
  2. Step 2: Convert to fraction form
    2,212.84/3,054 = 1,281.16/x
  3. Step 3: Cross multiply
    2,212.84x = 3,054 × 1,281.16
  4. Step 4: Simplify right side
    2,212.84x = 3,912,662.64
  5. Step 5: Solve for x
    x = 3,912,662.64/2,212.84
  6. Step 6: Final answer
    x = 1,768.16

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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.