Home / 2,212.12-3,052.74-1,425.16

Finding the Fourth Proportional to 2,212.12, 3,052.74 and 1,425.16

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Solution

The fourth proportional to 2,212.12, 3,052.74 and 1,425.16 is: 1,966.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,212.12 : 3,052.74 = 1,425.16 : x
  2. Step 2: Convert to fraction form
    2,212.12/3,052.74 = 1,425.16/x
  3. Step 3: Cross multiply
    2,212.12x = 3,052.74 × 1,425.16
  4. Step 4: Simplify right side
    2,212.12x = 4,350,642.94
  5. Step 5: Solve for x
    x = 4,350,642.94/2,212.12
  6. Step 6: Final answer
    x = 1,966.73

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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.