Home / 2,813.39-4,220.86-1,231.82

Finding the Fourth Proportional to 2,813.39, 4,220.86 and 1,231.82

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Solution

The fourth proportional to 2,813.39, 4,220.86 and 1,231.82 is: 1,848.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,813.39 : 4,220.86 = 1,231.82 : x
  2. Step 2: Convert to fraction form
    2,813.39/4,220.86 = 1,231.82/x
  3. Step 3: Cross multiply
    2,813.39x = 4,220.86 × 1,231.82
  4. Step 4: Simplify right side
    2,813.39x = 5,199,351.86
  5. Step 5: Solve for x
    x = 5,199,351.86/2,813.39
  6. Step 6: Final answer
    x = 1,848.08

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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.