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Finding the Fourth Proportional to 2,763.88, 3,813.96 and 2,175.84

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Solution

The fourth proportional to 2,763.88, 3,813.96 and 2,175.84 is: 3,002.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,763.88 : 3,813.96 = 2,175.84 : x
  2. Step 2: Convert to fraction form
    2,763.88/3,813.96 = 2,175.84/x
  3. Step 3: Cross multiply
    2,763.88x = 3,813.96 × 2,175.84
  4. Step 4: Simplify right side
    2,763.88x = 8,298,566.73
  5. Step 5: Solve for x
    x = 8,298,566.73/2,763.88
  6. Step 6: Final answer
    x = 3,002.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.