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Finding the Fourth Proportional to 2,841.76, 4,265.90 and 2,679.76

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Solution

The fourth proportional to 2,841.76, 4,265.90 and 2,679.76 is: 4,022.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,841.76 : 4,265.90 = 2,679.76 : x
  2. Step 2: Convert to fraction form
    2,841.76/4,265.90 = 2,679.76/x
  3. Step 3: Cross multiply
    2,841.76x = 4,265.90 × 2,679.76
  4. Step 4: Simplify right side
    2,841.76x = 11,431,588.18
  5. Step 5: Solve for x
    x = 11,431,588.18/2,841.76
  6. Step 6: Final answer
    x = 4,022.71

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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.