Home / 2,212.46-3,055.57-1,375.16

Finding the Fourth Proportional to 2,212.46, 3,055.57 and 1,375.16

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Solution

The fourth proportional to 2,212.46, 3,055.57 and 1,375.16 is: 1,899.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,212.46 : 3,055.57 = 1,375.16 : x
  2. Step 2: Convert to fraction form
    2,212.46/3,055.57 = 1,375.16/x
  3. Step 3: Cross multiply
    2,212.46x = 3,055.57 × 1,375.16
  4. Step 4: Simplify right side
    2,212.46x = 4,201,886.66
  5. Step 5: Solve for x
    x = 4,201,886.66/2,212.46
  6. Step 6: Final answer
    x = 1,899.19

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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.