Home / 1,022.30-1,533.41-329.02

Finding the Fourth Proportional to 1,022.30, 1,533.41 and 329.02

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Solution

The fourth proportional to 1,022.30, 1,533.41 and 329.02 is: 493.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,022.30 : 1,533.41 = 329.02 : x
  2. Step 2: Convert to fraction form
    1,022.30/1,533.41 = 329.02/x
  3. Step 3: Cross multiply
    1,022.30x = 1,533.41 × 329.02
  4. Step 4: Simplify right side
    1,022.30x = 504,517.08
  5. Step 5: Solve for x
    x = 504,517.08/1,022.30
  6. Step 6: Final answer
    x = 493.51

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Double scale
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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.