Home / 2,144.19-3,212.07-1,911.99

Finding the Fourth Proportional to 2,144.19, 3,212.07 and 1,911.99

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Solution

The fourth proportional to 2,144.19, 3,212.07 and 1,911.99 is: 2,864.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,144.19 : 3,212.07 = 1,911.99 : x
  2. Step 2: Convert to fraction form
    2,144.19/3,212.07 = 1,911.99/x
  3. Step 3: Cross multiply
    2,144.19x = 3,212.07 × 1,911.99
  4. Step 4: Simplify right side
    2,144.19x = 6,141,445.72
  5. Step 5: Solve for x
    x = 6,141,445.72/2,144.19
  6. Step 6: Final answer
    x = 2,864.23

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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.