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Finding the Fourth Proportional to 3,932.73, 5,421.47 and 2,750.13

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Solution

The fourth proportional to 3,932.73, 5,421.47 and 2,750.13 is: 3,791.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,932.73 : 5,421.47 = 2,750.13 : x
  2. Step 2: Convert to fraction form
    3,932.73/5,421.47 = 2,750.13/x
  3. Step 3: Cross multiply
    3,932.73x = 5,421.47 × 2,750.13
  4. Step 4: Simplify right side
    3,932.73x = 14,909,733.54
  5. Step 5: Solve for x
    x = 14,909,733.54/3,932.73
  6. Step 6: Final answer
    x = 3,791.19

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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.