Home / 2,213.19-3,054.26-1,218.53

Finding the Fourth Proportional to 2,213.19, 3,054.26 and 1,218.53

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Solution

The fourth proportional to 2,213.19, 3,054.26 and 1,218.53 is: 1,681.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,213.19 : 3,054.26 = 1,218.53 : x
  2. Step 2: Convert to fraction form
    2,213.19/3,054.26 = 1,218.53/x
  3. Step 3: Cross multiply
    2,213.19x = 3,054.26 × 1,218.53
  4. Step 4: Simplify right side
    2,213.19x = 3,721,706.97
  5. Step 5: Solve for x
    x = 3,721,706.97/2,213.19
  6. Step 6: Final answer
    x = 1,681.61

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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.