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Finding the Fourth Proportional to 2,675.56, 4,012.86 and 943.88

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Solution

The fourth proportional to 2,675.56, 4,012.86 and 943.88 is: 1,415.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,675.56 : 4,012.86 = 943.88 : x
  2. Step 2: Convert to fraction form
    2,675.56/4,012.86 = 943.88/x
  3. Step 3: Cross multiply
    2,675.56x = 4,012.86 × 943.88
  4. Step 4: Simplify right side
    2,675.56x = 3,787,658.30
  5. Step 5: Solve for x
    x = 3,787,658.30/2,675.56
  6. Step 6: Final answer
    x = 1,415.65

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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.