Home / 3,175.20-4,379.67-2,511

Finding the Fourth Proportional to 3,175.20, 4,379.67 and 2,511

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Solution

The fourth proportional to 3,175.20, 4,379.67 and 2,511 is: 3,463.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,175.20 : 4,379.67 = 2,511 : x
  2. Step 2: Convert to fraction form
    3,175.20/4,379.67 = 2,511/x
  3. Step 3: Cross multiply
    3,175.20x = 4,379.67 × 2,511
  4. Step 4: Simplify right side
    3,175.20x = 10,997,351.37
  5. Step 5: Solve for x
    x = 10,997,351.37/3,175.20
  6. Step 6: Final answer
    x = 3,463.51

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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.