Home / 2,765.15-4,146.42-1,120.44

Finding the Fourth Proportional to 2,765.15, 4,146.42 and 1,120.44

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Solution

The fourth proportional to 2,765.15, 4,146.42 and 1,120.44 is: 1,680.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,765.15 : 4,146.42 = 1,120.44 : x
  2. Step 2: Convert to fraction form
    2,765.15/4,146.42 = 1,120.44/x
  3. Step 3: Cross multiply
    2,765.15x = 4,146.42 × 1,120.44
  4. Step 4: Simplify right side
    2,765.15x = 4,645,814.82
  5. Step 5: Solve for x
    x = 4,645,814.82/2,765.15
  6. Step 6: Final answer
    x = 1,680.13

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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.