Home / 2,110.62-3,161.16-1,015.80

Finding the Fourth Proportional to 2,110.62, 3,161.16 and 1,015.80

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Solution

The fourth proportional to 2,110.62, 3,161.16 and 1,015.80 is: 1,521.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,110.62 : 3,161.16 = 1,015.80 : x
  2. Step 2: Convert to fraction form
    2,110.62/3,161.16 = 1,015.80/x
  3. Step 3: Cross multiply
    2,110.62x = 3,161.16 × 1,015.80
  4. Step 4: Simplify right side
    2,110.62x = 3,211,106.33
  5. Step 5: Solve for x
    x = 3,211,106.33/2,110.62
  6. Step 6: Final answer
    x = 1,521.40

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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.