Home / 3,128.85-4,694.31-1,049.06

Finding the Fourth Proportional to 3,128.85, 4,694.31 and 1,049.06

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Solution

The fourth proportional to 3,128.85, 4,694.31 and 1,049.06 is: 1,573.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,128.85 : 4,694.31 = 1,049.06 : x
  2. Step 2: Convert to fraction form
    3,128.85/4,694.31 = 1,049.06/x
  3. Step 3: Cross multiply
    3,128.85x = 4,694.31 × 1,049.06
  4. Step 4: Simplify right side
    3,128.85x = 4,924,589.38
  5. Step 5: Solve for x
    x = 4,924,589.38/3,128.85
  6. Step 6: Final answer
    x = 1,573.93

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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.