Home / 2,760.86-3,813.81-2,200.59

Finding the Fourth Proportional to 2,760.86, 3,813.81 and 2,200.59

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Solution

The fourth proportional to 2,760.86, 3,813.81 and 2,200.59 is: 3,039.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,760.86 : 3,813.81 = 2,200.59 : x
  2. Step 2: Convert to fraction form
    2,760.86/3,813.81 = 2,200.59/x
  3. Step 3: Cross multiply
    2,760.86x = 3,813.81 × 2,200.59
  4. Step 4: Simplify right side
    2,760.86x = 8,392,640.81
  5. Step 5: Solve for x
    x = 8,392,640.81/2,760.86
  6. Step 6: Final answer
    x = 3,039.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.