Home / 5,435.16-8,161.80-3,667.60

Finding the Fourth Proportional to 5,435.16, 8,161.80 and 3,667.60

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Solution

The fourth proportional to 5,435.16, 8,161.80 and 3,667.60 is: 5,507.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,435.16 : 8,161.80 = 3,667.60 : x
  2. Step 2: Convert to fraction form
    5,435.16/8,161.80 = 3,667.60/x
  3. Step 3: Cross multiply
    5,435.16x = 8,161.80 × 3,667.60
  4. Step 4: Simplify right side
    5,435.16x = 29,934,217.68
  5. Step 5: Solve for x
    x = 29,934,217.68/5,435.16
  6. Step 6: Final answer
    x = 5,507.51

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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.