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Finding the Fourth Proportional to 886.37, 1,327.22 and 712.10

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Solution

The fourth proportional to 886.37, 1,327.22 and 712.10 is: 1,066.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    886.37 : 1,327.22 = 712.10 : x
  2. Step 2: Convert to fraction form
    886.37/1,327.22 = 712.10/x
  3. Step 3: Cross multiply
    886.37x = 1,327.22 × 712.10
  4. Step 4: Simplify right side
    886.37x = 945,103.17
  5. Step 5: Solve for x
    x = 945,103.17/886.37
  6. Step 6: Final answer
    x = 1,066.27

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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.