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Finding the Fourth Proportional to 6,720.22, 9,273.87 and 3,735.87

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Solution

The fourth proportional to 6,720.22, 9,273.87 and 3,735.87 is: 5,155.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,720.22 : 9,273.87 = 3,735.87 : x
  2. Step 2: Convert to fraction form
    6,720.22/9,273.87 = 3,735.87/x
  3. Step 3: Cross multiply
    6,720.22x = 9,273.87 × 3,735.87
  4. Step 4: Simplify right side
    6,720.22x = 34,645,979.60
  5. Step 5: Solve for x
    x = 34,645,979.60/6,720.22
  6. Step 6: Final answer
    x = 5,155.49

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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.