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Finding the Fourth Proportional to 3,209.92, 4,814.26 and 901.42

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Solution

The fourth proportional to 3,209.92, 4,814.26 and 901.42 is: 1,351.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,209.92 : 4,814.26 = 901.42 : x
  2. Step 2: Convert to fraction form
    3,209.92/4,814.26 = 901.42/x
  3. Step 3: Cross multiply
    3,209.92x = 4,814.26 × 901.42
  4. Step 4: Simplify right side
    3,209.92x = 4,339,670.25
  5. Step 5: Solve for x
    x = 4,339,670.25/3,209.92
  6. Step 6: Final answer
    x = 1,351.96

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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.