Home / 4,947.23-7,422.80-2,171.96

Finding the Fourth Proportional to 4,947.23, 7,422.80 and 2,171.96

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Solution

The fourth proportional to 4,947.23, 7,422.80 and 2,171.96 is: 3,258.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,947.23 : 7,422.80 = 2,171.96 : x
  2. Step 2: Convert to fraction form
    4,947.23/7,422.80 = 2,171.96/x
  3. Step 3: Cross multiply
    4,947.23x = 7,422.80 × 2,171.96
  4. Step 4: Simplify right side
    4,947.23x = 16,122,032.39
  5. Step 5: Solve for x
    x = 16,122,032.39/4,947.23
  6. Step 6: Final answer
    x = 3,258.80

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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.