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Finding the Fourth Proportional to 6,372.54, 8,794.65 and 3,720.80

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Solution

The fourth proportional to 6,372.54, 8,794.65 and 3,720.80 is: 5,135.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,372.54 : 8,794.65 = 3,720.80 : x
  2. Step 2: Convert to fraction form
    6,372.54/8,794.65 = 3,720.80/x
  3. Step 3: Cross multiply
    6,372.54x = 8,794.65 × 3,720.80
  4. Step 4: Simplify right side
    6,372.54x = 32,723,089.75
  5. Step 5: Solve for x
    x = 32,723,089.75/6,372.54
  6. Step 6: Final answer
    x = 5,135.02

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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.