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Finding the Fourth Proportional to 886.96, 1,336.45 and 736.26

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Solution

The fourth proportional to 886.96, 1,336.45 and 736.26 is: 1,109.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    886.96 : 1,336.45 = 736.26 : x
  2. Step 2: Convert to fraction form
    886.96/1,336.45 = 736.26/x
  3. Step 3: Cross multiply
    886.96x = 1,336.45 × 736.26
  4. Step 4: Simplify right side
    886.96x = 983,974.68
  5. Step 5: Solve for x
    x = 983,974.68/886.96
  6. Step 6: Final answer
    x = 1,109.38

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.