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Finding the Fourth Proportional to 4,493.65, 6,739.60 and 1,372.90

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Solution

The fourth proportional to 4,493.65, 6,739.60 and 1,372.90 is: 2,059.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,493.65 : 6,739.60 = 1,372.90 : x
  2. Step 2: Convert to fraction form
    4,493.65/6,739.60 = 1,372.90/x
  3. Step 3: Cross multiply
    4,493.65x = 6,739.60 × 1,372.90
  4. Step 4: Simplify right side
    4,493.65x = 9,252,796.84
  5. Step 5: Solve for x
    x = 9,252,796.84/4,493.65
  6. Step 6: Final answer
    x = 2,059.08

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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.