Home / 2,785.20-4,178.68-1,675.83

Finding the Fourth Proportional to 2,785.20, 4,178.68 and 1,675.83

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Solution

The fourth proportional to 2,785.20, 4,178.68 and 1,675.83 is: 2,514.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,785.20 : 4,178.68 = 1,675.83 : x
  2. Step 2: Convert to fraction form
    2,785.20/4,178.68 = 1,675.83/x
  3. Step 3: Cross multiply
    2,785.20x = 4,178.68 × 1,675.83
  4. Step 4: Simplify right side
    2,785.20x = 7,002,738.48
  5. Step 5: Solve for x
    x = 7,002,738.48/2,785.20
  6. Step 6: Final answer
    x = 2,514.27

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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.