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Finding the Fourth Proportional to 1,102.26, 1,652.43 and 633.63

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Solution

The fourth proportional to 1,102.26, 1,652.43 and 633.63 is: 949.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,102.26 : 1,652.43 = 633.63 : x
  2. Step 2: Convert to fraction form
    1,102.26/1,652.43 = 633.63/x
  3. Step 3: Cross multiply
    1,102.26x = 1,652.43 × 633.63
  4. Step 4: Simplify right side
    1,102.26x = 1,047,029.22
  5. Step 5: Solve for x
    x = 1,047,029.22/1,102.26
  6. Step 6: Final answer
    x = 949.89

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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.