Home / 2,685.91-4,028.86-1,043.61

Finding the Fourth Proportional to 2,685.91, 4,028.86 and 1,043.61

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Solution

The fourth proportional to 2,685.91, 4,028.86 and 1,043.61 is: 1,565.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,685.91 : 4,028.86 = 1,043.61 : x
  2. Step 2: Convert to fraction form
    2,685.91/4,028.86 = 1,043.61/x
  3. Step 3: Cross multiply
    2,685.91x = 4,028.86 × 1,043.61
  4. Step 4: Simplify right side
    2,685.91x = 4,204,559.05
  5. Step 5: Solve for x
    x = 4,204,559.05/2,685.91
  6. Step 6: Final answer
    x = 1,565.41

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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.