Home / 3,020.28-4,530.48-829.07

Finding the Fourth Proportional to 3,020.28, 4,530.48 and 829.07

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Solution

The fourth proportional to 3,020.28, 4,530.48 and 829.07 is: 1,243.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,020.28 : 4,530.48 = 829.07 : x
  2. Step 2: Convert to fraction form
    3,020.28/4,530.48 = 829.07/x
  3. Step 3: Cross multiply
    3,020.28x = 4,530.48 × 829.07
  4. Step 4: Simplify right side
    3,020.28x = 3,756,062.40
  5. Step 5: Solve for x
    x = 3,756,062.40/3,020.28
  6. Step 6: Final answer
    x = 1,243.61

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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.