Home / 6,512.54-9,761.93-2,128.82

Finding the Fourth Proportional to 6,512.54, 9,761.93 and 2,128.82

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Solution

The fourth proportional to 6,512.54, 9,761.93 and 2,128.82 is: 3,190.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,512.54 : 9,761.93 = 2,128.82 : x
  2. Step 2: Convert to fraction form
    6,512.54/9,761.93 = 2,128.82/x
  3. Step 3: Cross multiply
    6,512.54x = 9,761.93 × 2,128.82
  4. Step 4: Simplify right side
    6,512.54x = 20,781,405.58
  5. Step 5: Solve for x
    x = 20,781,405.58/6,512.54
  6. Step 6: Final answer
    x = 3,190.98

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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.