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Finding the Fourth Proportional to 1,052.95, 1,452.91 and 633.21

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Solution

The fourth proportional to 1,052.95, 1,452.91 and 633.21 is: 873.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,052.95 : 1,452.91 = 633.21 : x
  2. Step 2: Convert to fraction form
    1,052.95/1,452.91 = 633.21/x
  3. Step 3: Cross multiply
    1,052.95x = 1,452.91 × 633.21
  4. Step 4: Simplify right side
    1,052.95x = 919,997.14
  5. Step 5: Solve for x
    x = 919,997.14/1,052.95
  6. Step 6: Final answer
    x = 873.73

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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.