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Finding the Fourth Proportional to 1,975.76, 2,961.48 and 1,154.42

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Solution

The fourth proportional to 1,975.76, 2,961.48 and 1,154.42 is: 1,730.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,975.76 : 2,961.48 = 1,154.42 : x
  2. Step 2: Convert to fraction form
    1,975.76/2,961.48 = 1,154.42/x
  3. Step 3: Cross multiply
    1,975.76x = 2,961.48 × 1,154.42
  4. Step 4: Simplify right side
    1,975.76x = 3,418,791.74
  5. Step 5: Solve for x
    x = 3,418,791.74/1,975.76
  6. Step 6: Final answer
    x = 1,730.37

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