Home / 2,818.14-4,212.80-2,080.86

Finding the Fourth Proportional to 2,818.14, 4,212.80 and 2,080.86

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Solution

The fourth proportional to 2,818.14, 4,212.80 and 2,080.86 is: 3,110.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,818.14 : 4,212.80 = 2,080.86 : x
  2. Step 2: Convert to fraction form
    2,818.14/4,212.80 = 2,080.86/x
  3. Step 3: Cross multiply
    2,818.14x = 4,212.80 × 2,080.86
  4. Step 4: Simplify right side
    2,818.14x = 8,766,247.01
  5. Step 5: Solve for x
    x = 8,766,247.01/2,818.14
  6. Step 6: Final answer
    x = 3,110.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.