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Finding the Fourth Proportional to 3,679.70, 5,504.36 and 3,355.30

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Solution

The fourth proportional to 3,679.70, 5,504.36 and 3,355.30 is: 5,019.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,679.70 : 5,504.36 = 3,355.30 : x
  2. Step 2: Convert to fraction form
    3,679.70/5,504.36 = 3,355.30/x
  3. Step 3: Cross multiply
    3,679.70x = 5,504.36 × 3,355.30
  4. Step 4: Simplify right side
    3,679.70x = 18,468,734.81
  5. Step 5: Solve for x
    x = 18,468,734.81/3,679.70
  6. Step 6: Final answer
    x = 5,019.09

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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.