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Finding the Fourth Proportional to 3,489.55, 4,819.83 and 2,609.26

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Solution

The fourth proportional to 3,489.55, 4,819.83 and 2,609.26 is: 3,603.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,489.55 : 4,819.83 = 2,609.26 : x
  2. Step 2: Convert to fraction form
    3,489.55/4,819.83 = 2,609.26/x
  3. Step 3: Cross multiply
    3,489.55x = 4,819.83 × 2,609.26
  4. Step 4: Simplify right side
    3,489.55x = 12,576,189.63
  5. Step 5: Solve for x
    x = 12,576,189.63/3,489.55
  6. Step 6: Final answer
    x = 3,603.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.