Home / 4,947.54-7,422.93-2,638.50

Finding the Fourth Proportional to 4,947.54, 7,422.93 and 2,638.50

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Solution

The fourth proportional to 4,947.54, 7,422.93 and 2,638.50 is: 3,958.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,947.54 : 7,422.93 = 2,638.50 : x
  2. Step 2: Convert to fraction form
    4,947.54/7,422.93 = 2,638.50/x
  3. Step 3: Cross multiply
    4,947.54x = 7,422.93 × 2,638.50
  4. Step 4: Simplify right side
    4,947.54x = 19,585,400.81
  5. Step 5: Solve for x
    x = 19,585,400.81/4,947.54
  6. Step 6: Final answer
    x = 3,958.61

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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.