Home / 3,178.46-4,760.78-1,791.06

Finding the Fourth Proportional to 3,178.46, 4,760.78 and 1,791.06

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Solution

The fourth proportional to 3,178.46, 4,760.78 and 1,791.06 is: 2,682.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,178.46 : 4,760.78 = 1,791.06 : x
  2. Step 2: Convert to fraction form
    3,178.46/4,760.78 = 1,791.06/x
  3. Step 3: Cross multiply
    3,178.46x = 4,760.78 × 1,791.06
  4. Step 4: Simplify right side
    3,178.46x = 8,526,833.67
  5. Step 5: Solve for x
    x = 8,526,833.67/3,178.46
  6. Step 6: Final answer
    x = 2,682.70

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1.5x scale

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.