Home / 6,512.80-9,769.84-2,130.08

Finding the Fourth Proportional to 6,512.80, 9,769.84 and 2,130.08

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Solution

The fourth proportional to 6,512.80, 9,769.84 and 2,130.08 is: 3,195.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,512.80 : 9,769.84 = 2,130.08 : x
  2. Step 2: Convert to fraction form
    6,512.80/9,769.84 = 2,130.08/x
  3. Step 3: Cross multiply
    6,512.80x = 9,769.84 × 2,130.08
  4. Step 4: Simplify right side
    6,512.80x = 20,810,540.79
  5. Step 5: Solve for x
    x = 20,810,540.79/6,512.80
  6. Step 6: Final answer
    x = 3,195.33

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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.