Home / 3,020.26-4,529.68-829.16

Finding the Fourth Proportional to 3,020.26, 4,529.68 and 829.16

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Solution

The fourth proportional to 3,020.26, 4,529.68 and 829.16 is: 1,243.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,020.26 : 4,529.68 = 829.16 : x
  2. Step 2: Convert to fraction form
    3,020.26/4,529.68 = 829.16/x
  3. Step 3: Cross multiply
    3,020.26x = 4,529.68 × 829.16
  4. Step 4: Simplify right side
    3,020.26x = 3,755,829.47
  5. Step 5: Solve for x
    x = 3,755,829.47/3,020.26
  6. Step 6: Final answer
    x = 1,243.55

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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.