Home / 2,763.63-4,147.17-1,120.18

Finding the Fourth Proportional to 2,763.63, 4,147.17 and 1,120.18

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Solution

The fourth proportional to 2,763.63, 4,147.17 and 1,120.18 is: 1,680.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,763.63 : 4,147.17 = 1,120.18 : x
  2. Step 2: Convert to fraction form
    2,763.63/4,147.17 = 1,120.18/x
  3. Step 3: Cross multiply
    2,763.63x = 4,147.17 × 1,120.18
  4. Step 4: Simplify right side
    2,763.63x = 4,645,576.89
  5. Step 5: Solve for x
    x = 4,645,576.89/2,763.63
  6. Step 6: Final answer
    x = 1,680.97

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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.