Home / 3,285.99-4,930.88-1,338.21

Finding the Fourth Proportional to 3,285.99, 4,930.88 and 1,338.21

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Solution

The fourth proportional to 3,285.99, 4,930.88 and 1,338.21 is: 2,008.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,285.99 : 4,930.88 = 1,338.21 : x
  2. Step 2: Convert to fraction form
    3,285.99/4,930.88 = 1,338.21/x
  3. Step 3: Cross multiply
    3,285.99x = 4,930.88 × 1,338.21
  4. Step 4: Simplify right side
    3,285.99x = 6,598,546.23
  5. Step 5: Solve for x
    x = 6,598,546.23/3,285.99
  6. Step 6: Final answer
    x = 2,008.08

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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.