Home / 3,391.90-5,081.59-1,829.56

Finding the Fourth Proportional to 3,391.90, 5,081.59 and 1,829.56

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Solution

The fourth proportional to 3,391.90, 5,081.59 and 1,829.56 is: 2,740.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,391.90 : 5,081.59 = 1,829.56 : x
  2. Step 2: Convert to fraction form
    3,391.90/5,081.59 = 1,829.56/x
  3. Step 3: Cross multiply
    3,391.90x = 5,081.59 × 1,829.56
  4. Step 4: Simplify right side
    3,391.90x = 9,297,076.91
  5. Step 5: Solve for x
    x = 9,297,076.91/3,391.90
  6. Step 6: Final answer
    x = 2,740.96

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1.5x scale

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.