Home / 3,815.16-5,728.20-2,175

Finding the Fourth Proportional to 3,815.16, 5,728.20 and 2,175

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Solution

The fourth proportional to 3,815.16, 5,728.20 and 2,175 is: 3,265.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,815.16 : 5,728.20 = 2,175 : x
  2. Step 2: Convert to fraction form
    3,815.16/5,728.20 = 2,175/x
  3. Step 3: Cross multiply
    3,815.16x = 5,728.20 × 2,175
  4. Step 4: Simplify right side
    3,815.16x = 12,458,835
  5. Step 5: Solve for x
    x = 12,458,835/3,815.16
  6. Step 6: Final answer
    x = 3,265.61

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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.