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Finding the Fourth Proportional to 3,020.54, 4,530.77 and 829.26

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Solution

The fourth proportional to 3,020.54, 4,530.77 and 829.26 is: 1,243.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,020.54 : 4,530.77 = 829.26 : x
  2. Step 2: Convert to fraction form
    3,020.54/4,530.77 = 829.26/x
  3. Step 3: Cross multiply
    3,020.54x = 4,530.77 × 829.26
  4. Step 4: Simplify right side
    3,020.54x = 3,757,182.18
  5. Step 5: Solve for x
    x = 3,757,182.18/3,020.54
  6. Step 6: Final answer
    x = 1,243.88

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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.