Home / 2,080.26-3,120.57-847.76

Finding the Fourth Proportional to 2,080.26, 3,120.57 and 847.76

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Solution

The fourth proportional to 2,080.26, 3,120.57 and 847.76 is: 1,271.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,080.26 : 3,120.57 = 847.76 : x
  2. Step 2: Convert to fraction form
    2,080.26/3,120.57 = 847.76/x
  3. Step 3: Cross multiply
    2,080.26x = 3,120.57 × 847.76
  4. Step 4: Simplify right side
    2,080.26x = 2,645,478.82
  5. Step 5: Solve for x
    x = 2,645,478.82/2,080.26
  6. Step 6: Final answer
    x = 1,271.71

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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.