Home / 2,213.82-3,054.95-1,219.06

Finding the Fourth Proportional to 2,213.82, 3,054.95 and 1,219.06

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Solution

The fourth proportional to 2,213.82, 3,054.95 and 1,219.06 is: 1,682.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,213.82 : 3,054.95 = 1,219.06 : x
  2. Step 2: Convert to fraction form
    2,213.82/3,054.95 = 1,219.06/x
  3. Step 3: Cross multiply
    2,213.82x = 3,054.95 × 1,219.06
  4. Step 4: Simplify right side
    2,213.82x = 3,724,167.35
  5. Step 5: Solve for x
    x = 3,724,167.35/2,213.82
  6. Step 6: Final answer
    x = 1,682.24

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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.