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Finding the Fourth Proportional to 2,958.11, 4,437.12 and 879.52

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Solution

The fourth proportional to 2,958.11, 4,437.12 and 879.52 is: 1,319.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,958.11 : 4,437.12 = 879.52 : x
  2. Step 2: Convert to fraction form
    2,958.11/4,437.12 = 879.52/x
  3. Step 3: Cross multiply
    2,958.11x = 4,437.12 × 879.52
  4. Step 4: Simplify right side
    2,958.11x = 3,902,535.78
  5. Step 5: Solve for x
    x = 3,902,535.78/2,958.11
  6. Step 6: Final answer
    x = 1,319.27

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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.