Home / 3,329.28-4,993.60-1,020.80

Finding the Fourth Proportional to 3,329.28, 4,993.60 and 1,020.80

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Solution

The fourth proportional to 3,329.28, 4,993.60 and 1,020.80 is: 1,531.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,329.28 : 4,993.60 = 1,020.80 : x
  2. Step 2: Convert to fraction form
    3,329.28/4,993.60 = 1,020.80/x
  3. Step 3: Cross multiply
    3,329.28x = 4,993.60 × 1,020.80
  4. Step 4: Simplify right side
    3,329.28x = 5,097,466.88
  5. Step 5: Solve for x
    x = 5,097,466.88/3,329.28
  6. Step 6: Final answer
    x = 1,531.10

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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.