Home / 2,841.78-4,262.58-1,381.89

Finding the Fourth Proportional to 2,841.78, 4,262.58 and 1,381.89

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Solution

The fourth proportional to 2,841.78, 4,262.58 and 1,381.89 is: 2,072.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,841.78 : 4,262.58 = 1,381.89 : x
  2. Step 2: Convert to fraction form
    2,841.78/4,262.58 = 1,381.89/x
  3. Step 3: Cross multiply
    2,841.78x = 4,262.58 × 1,381.89
  4. Step 4: Simplify right side
    2,841.78x = 5,890,416.68
  5. Step 5: Solve for x
    x = 5,890,416.68/2,841.78
  6. Step 6: Final answer
    x = 2,072.79

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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.