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Finding the Fourth Proportional to 3,456.01, 5,183.99 and 858.94

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Solution

The fourth proportional to 3,456.01, 5,183.99 and 858.94 is: 1,288.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,456.01 : 5,183.99 = 858.94 : x
  2. Step 2: Convert to fraction form
    3,456.01/5,183.99 = 858.94/x
  3. Step 3: Cross multiply
    3,456.01x = 5,183.99 × 858.94
  4. Step 4: Simplify right side
    3,456.01x = 4,452,732.08
  5. Step 5: Solve for x
    x = 4,452,732.08/3,456.01
  6. Step 6: Final answer
    x = 1,288.40

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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.