Home / 2,780.73-4,175.86-2,469.08

Finding the Fourth Proportional to 2,780.73, 4,175.86 and 2,469.08

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Solution

The fourth proportional to 2,780.73, 4,175.86 and 2,469.08 is: 3,707.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,780.73 : 4,175.86 = 2,469.08 : x
  2. Step 2: Convert to fraction form
    2,780.73/4,175.86 = 2,469.08/x
  3. Step 3: Cross multiply
    2,780.73x = 4,175.86 × 2,469.08
  4. Step 4: Simplify right side
    2,780.73x = 10,310,532.41
  5. Step 5: Solve for x
    x = 10,310,532.41/2,780.73
  6. Step 6: Final answer
    x = 3,707.85

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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.