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Finding the Fourth Proportional to 736.36, 1,101.66 and 491.72

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Solution

The fourth proportional to 736.36, 1,101.66 and 491.72 is: 735.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    736.36 : 1,101.66 = 491.72 : x
  2. Step 2: Convert to fraction form
    736.36/1,101.66 = 491.72/x
  3. Step 3: Cross multiply
    736.36x = 1,101.66 × 491.72
  4. Step 4: Simplify right side
    736.36x = 541,708.26
  5. Step 5: Solve for x
    x = 541,708.26/736.36
  6. Step 6: Final answer
    x = 735.66

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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.