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Finding the Fourth Proportional to 1,449.22, 2,174.16 and 475.32

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Solution

The fourth proportional to 1,449.22, 2,174.16 and 475.32 is: 713.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,449.22 : 2,174.16 = 475.32 : x
  2. Step 2: Convert to fraction form
    1,449.22/2,174.16 = 475.32/x
  3. Step 3: Cross multiply
    1,449.22x = 2,174.16 × 475.32
  4. Step 4: Simplify right side
    1,449.22x = 1,033,421.73
  5. Step 5: Solve for x
    x = 1,033,421.73/1,449.22
  6. Step 6: Final answer
    x = 713.09

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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.