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Finding the Fourth Proportional to 6,453.73, 8,905.42 and 3,620.51

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Solution

The fourth proportional to 6,453.73, 8,905.42 and 3,620.51 is: 4,995.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,453.73 : 8,905.42 = 3,620.51 : x
  2. Step 2: Convert to fraction form
    6,453.73/8,905.42 = 3,620.51/x
  3. Step 3: Cross multiply
    6,453.73x = 8,905.42 × 3,620.51
  4. Step 4: Simplify right side
    6,453.73x = 32,242,157.90
  5. Step 5: Solve for x
    x = 32,242,157.90/6,453.73
  6. Step 6: Final answer
    x = 4,995.90

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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.