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Finding the Fourth Proportional to 941.19, 1,412.15 and 879.27

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Solution

The fourth proportional to 941.19, 1,412.15 and 879.27 is: 1,319.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    941.19 : 1,412.15 = 879.27 : x
  2. Step 2: Convert to fraction form
    941.19/1,412.15 = 879.27/x
  3. Step 3: Cross multiply
    941.19x = 1,412.15 × 879.27
  4. Step 4: Simplify right side
    941.19x = 1,241,656.73
  5. Step 5: Solve for x
    x = 1,241,656.73/941.19
  6. Step 6: Final answer
    x = 1,319.24

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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.