Home / 3,115.72-4,672.14-1,166.44

Finding the Fourth Proportional to 3,115.72, 4,672.14 and 1,166.44

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Solution

The fourth proportional to 3,115.72, 4,672.14 and 1,166.44 is: 1,749.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,115.72 : 4,672.14 = 1,166.44 : x
  2. Step 2: Convert to fraction form
    3,115.72/4,672.14 = 1,166.44/x
  3. Step 3: Cross multiply
    3,115.72x = 4,672.14 × 1,166.44
  4. Step 4: Simplify right side
    3,115.72x = 5,449,770.98
  5. Step 5: Solve for x
    x = 5,449,770.98/3,115.72
  6. Step 6: Final answer
    x = 1,749.12

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1.5x scale

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.