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Finding the Fourth Proportional to 6,372.63, 8,795.13 and 3,720.15

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Solution

The fourth proportional to 6,372.63, 8,795.13 and 3,720.15 is: 5,134.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,372.63 : 8,795.13 = 3,720.15 : x
  2. Step 2: Convert to fraction form
    6,372.63/8,795.13 = 3,720.15/x
  3. Step 3: Cross multiply
    6,372.63x = 8,795.13 × 3,720.15
  4. Step 4: Simplify right side
    6,372.63x = 32,719,202.87
  5. Step 5: Solve for x
    x = 32,719,202.87/6,372.63
  6. Step 6: Final answer
    x = 5,134.33

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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.