Home / 5,175.72-7,139.46-3,757.74

Finding the Fourth Proportional to 5,175.72, 7,139.46 and 3,757.74

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Solution

The fourth proportional to 5,175.72, 7,139.46 and 3,757.74 is: 5,183.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,175.72 : 7,139.46 = 3,757.74 : x
  2. Step 2: Convert to fraction form
    5,175.72/7,139.46 = 3,757.74/x
  3. Step 3: Cross multiply
    5,175.72x = 7,139.46 × 3,757.74
  4. Step 4: Simplify right side
    5,175.72x = 26,828,234.42
  5. Step 5: Solve for x
    x = 26,828,234.42/5,175.72
  6. Step 6: Final answer
    x = 5,183.48

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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.