Home / 4,945.82-6,825.77-2,821.87

Finding the Fourth Proportional to 4,945.82, 6,825.77 and 2,821.87

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Solution

The fourth proportional to 4,945.82, 6,825.77 and 2,821.87 is: 3,894.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,945.82 : 6,825.77 = 2,821.87 : x
  2. Step 2: Convert to fraction form
    4,945.82/6,825.77 = 2,821.87/x
  3. Step 3: Cross multiply
    4,945.82x = 6,825.77 × 2,821.87
  4. Step 4: Simplify right side
    4,945.82x = 19,261,456.47
  5. Step 5: Solve for x
    x = 19,261,456.47/4,945.82
  6. Step 6: Final answer
    x = 3,894.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.