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Finding the Fourth Proportional to 2,791.76, 4,179.41 and 2,445.77

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Solution

The fourth proportional to 2,791.76, 4,179.41 and 2,445.77 is: 3,661.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,791.76 : 4,179.41 = 2,445.77 : x
  2. Step 2: Convert to fraction form
    2,791.76/4,179.41 = 2,445.77/x
  3. Step 3: Cross multiply
    2,791.76x = 4,179.41 × 2,445.77
  4. Step 4: Simplify right side
    2,791.76x = 10,221,842.47
  5. Step 5: Solve for x
    x = 10,221,842.47/2,791.76
  6. Step 6: Final answer
    x = 3,661.44

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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.