Home / 2,119.43-3,180.80-2,011.06

Finding the Fourth Proportional to 2,119.43, 3,180.80 and 2,011.06

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Solution

The fourth proportional to 2,119.43, 3,180.80 and 2,011.06 is: 3,018.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,119.43 : 3,180.80 = 2,011.06 : x
  2. Step 2: Convert to fraction form
    2,119.43/3,180.80 = 2,011.06/x
  3. Step 3: Cross multiply
    2,119.43x = 3,180.80 × 2,011.06
  4. Step 4: Simplify right side
    2,119.43x = 6,396,788.65
  5. Step 5: Solve for x
    x = 6,396,788.65/2,119.43
  6. Step 6: Final answer
    x = 3,018.16

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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.