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Finding the Fourth Proportional to 3,993.03, 5,508.81 and 2,667.60

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Solution

The fourth proportional to 3,993.03, 5,508.81 and 2,667.60 is: 3,680.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,993.03 : 5,508.81 = 2,667.60 : x
  2. Step 2: Convert to fraction form
    3,993.03/5,508.81 = 2,667.60/x
  3. Step 3: Cross multiply
    3,993.03x = 5,508.81 × 2,667.60
  4. Step 4: Simplify right side
    3,993.03x = 14,695,301.56
  5. Step 5: Solve for x
    x = 14,695,301.56/3,993.03
  6. Step 6: Final answer
    x = 3,680.24

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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.