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Finding the Fourth Proportional to 1,153.21, 1,727.11 and 566.38

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Solution

The fourth proportional to 1,153.21, 1,727.11 and 566.38 is: 848.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,153.21 : 1,727.11 = 566.38 : x
  2. Step 2: Convert to fraction form
    1,153.21/1,727.11 = 566.38/x
  3. Step 3: Cross multiply
    1,153.21x = 1,727.11 × 566.38
  4. Step 4: Simplify right side
    1,153.21x = 978,197.73
  5. Step 5: Solve for x
    x = 978,197.73/1,153.21
  6. Step 6: Final answer
    x = 848.24

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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.