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Finding the Fourth Proportional to 2,791.67, 3,852.21 and 1,613.12

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Solution

The fourth proportional to 2,791.67, 3,852.21 and 1,613.12 is: 2,225.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,791.67 : 3,852.21 = 1,613.12 : x
  2. Step 2: Convert to fraction form
    2,791.67/3,852.21 = 1,613.12/x
  3. Step 3: Cross multiply
    2,791.67x = 3,852.21 × 1,613.12
  4. Step 4: Simplify right side
    2,791.67x = 6,214,057.73
  5. Step 5: Solve for x
    x = 6,214,057.73/2,791.67
  6. Step 6: Final answer
    x = 2,225.93

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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.