Home / 6,512.23-9,761.46-2,128.51

Finding the Fourth Proportional to 6,512.23, 9,761.46 and 2,128.51

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Solution

The fourth proportional to 6,512.23, 9,761.46 and 2,128.51 is: 3,190.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,512.23 : 9,761.46 = 2,128.51 : x
  2. Step 2: Convert to fraction form
    6,512.23/9,761.46 = 2,128.51/x
  3. Step 3: Cross multiply
    6,512.23x = 9,761.46 × 2,128.51
  4. Step 4: Simplify right side
    6,512.23x = 20,777,365.22
  5. Step 5: Solve for x
    x = 20,777,365.22/6,512.23
  6. Step 6: Final answer
    x = 3,190.51

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1.5x scale

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.