Home / 3,231.30-4,845.57-1,228.68

Finding the Fourth Proportional to 3,231.30, 4,845.57 and 1,228.68

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Solution

The fourth proportional to 3,231.30, 4,845.57 and 1,228.68 is: 1,842.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,231.30 : 4,845.57 = 1,228.68 : x
  2. Step 2: Convert to fraction form
    3,231.30/4,845.57 = 1,228.68/x
  3. Step 3: Cross multiply
    3,231.30x = 4,845.57 × 1,228.68
  4. Step 4: Simplify right side
    3,231.30x = 5,953,654.95
  5. Step 5: Solve for x
    x = 5,953,654.95/3,231.30
  6. Step 6: Final answer
    x = 1,842.50

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Half scale
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Double scale
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Similar ratio
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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.