Home / 3,120.64-4,306.38-1,793.44

Finding the Fourth Proportional to 3,120.64, 4,306.38 and 1,793.44

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Solution

The fourth proportional to 3,120.64, 4,306.38 and 1,793.44 is: 2,474.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,120.64 : 4,306.38 = 1,793.44 : x
  2. Step 2: Convert to fraction form
    3,120.64/4,306.38 = 1,793.44/x
  3. Step 3: Cross multiply
    3,120.64x = 4,306.38 × 1,793.44
  4. Step 4: Simplify right side
    3,120.64x = 7,723,234.15
  5. Step 5: Solve for x
    x = 7,723,234.15/3,120.64
  6. Step 6: Final answer
    x = 2,474.89

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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.