Home / 2,132.15-3,198.67-1,208.14

Finding the Fourth Proportional to 2,132.15, 3,198.67 and 1,208.14

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Solution

The fourth proportional to 2,132.15, 3,198.67 and 1,208.14 is: 1,812.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,132.15 : 3,198.67 = 1,208.14 : x
  2. Step 2: Convert to fraction form
    2,132.15/3,198.67 = 1,208.14/x
  3. Step 3: Cross multiply
    2,132.15x = 3,198.67 × 1,208.14
  4. Step 4: Simplify right side
    2,132.15x = 3,864,430.16
  5. Step 5: Solve for x
    x = 3,864,430.16/2,132.15
  6. Step 6: Final answer
    x = 1,812.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.