Home / 4,945.73-6,824.81-2,821.37

Finding the Fourth Proportional to 4,945.73, 6,824.81 and 2,821.37

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Solution

The fourth proportional to 4,945.73, 6,824.81 and 2,821.37 is: 3,893.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,945.73 : 6,824.81 = 2,821.37 : x
  2. Step 2: Convert to fraction form
    4,945.73/6,824.81 = 2,821.37/x
  3. Step 3: Cross multiply
    4,945.73x = 6,824.81 × 2,821.37
  4. Step 4: Simplify right side
    4,945.73x = 19,255,300.08
  5. Step 5: Solve for x
    x = 19,255,300.08/4,945.73
  6. Step 6: Final answer
    x = 3,893.32

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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.