Home / 3,175.10-4,751.85-2,786.30

Finding the Fourth Proportional to 3,175.10, 4,751.85 and 2,786.30

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Solution

The fourth proportional to 3,175.10, 4,751.85 and 2,786.30 is: 4,169.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,175.10 : 4,751.85 = 2,786.30 : x
  2. Step 2: Convert to fraction form
    3,175.10/4,751.85 = 2,786.30/x
  3. Step 3: Cross multiply
    3,175.10x = 4,751.85 × 2,786.30
  4. Step 4: Simplify right side
    3,175.10x = 13,240,079.66
  5. Step 5: Solve for x
    x = 13,240,079.66/3,175.10
  6. Step 6: Final answer
    x = 4,169.97

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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.