Home / 2,852.82-4,279.68-1,209.81

Finding the Fourth Proportional to 2,852.82, 4,279.68 and 1,209.81

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Solution

The fourth proportional to 2,852.82, 4,279.68 and 1,209.81 is: 1,814.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,852.82 : 4,279.68 = 1,209.81 : x
  2. Step 2: Convert to fraction form
    2,852.82/4,279.68 = 1,209.81/x
  3. Step 3: Cross multiply
    2,852.82x = 4,279.68 × 1,209.81
  4. Step 4: Simplify right side
    2,852.82x = 5,177,599.66
  5. Step 5: Solve for x
    x = 5,177,599.66/2,852.82
  6. Step 6: Final answer
    x = 1,814.91

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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.