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Finding the Fourth Proportional to 3,344.36, 5,016.59 and 879.42

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Solution

The fourth proportional to 3,344.36, 5,016.59 and 879.42 is: 1,319.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,344.36 : 5,016.59 = 879.42 : x
  2. Step 2: Convert to fraction form
    3,344.36/5,016.59 = 879.42/x
  3. Step 3: Cross multiply
    3,344.36x = 5,016.59 × 879.42
  4. Step 4: Simplify right side
    3,344.36x = 4,411,685.18
  5. Step 5: Solve for x
    x = 4,411,685.18/3,344.36
  6. Step 6: Final answer
    x = 1,319.14

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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.