Home / 3,219.96-4,830.81-1,028.70

Finding the Fourth Proportional to 3,219.96, 4,830.81 and 1,028.70

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Solution

The fourth proportional to 3,219.96, 4,830.81 and 1,028.70 is: 1,543.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,219.96 : 4,830.81 = 1,028.70 : x
  2. Step 2: Convert to fraction form
    3,219.96/4,830.81 = 1,028.70/x
  3. Step 3: Cross multiply
    3,219.96x = 4,830.81 × 1,028.70
  4. Step 4: Simplify right side
    3,219.96x = 4,969,454.25
  5. Step 5: Solve for x
    x = 4,969,454.25/3,219.96
  6. Step 6: Final answer
    x = 1,543.33

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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.