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Finding the Fourth Proportional to 2,387.88, 3,582.94 and 1,415.88

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Solution

The fourth proportional to 2,387.88, 3,582.94 and 1,415.88 is: 2,124.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,387.88 : 3,582.94 = 1,415.88 : x
  2. Step 2: Convert to fraction form
    2,387.88/3,582.94 = 1,415.88/x
  3. Step 3: Cross multiply
    2,387.88x = 3,582.94 × 1,415.88
  4. Step 4: Simplify right side
    2,387.88x = 5,073,013.09
  5. Step 5: Solve for x
    x = 5,073,013.09/2,387.88
  6. Step 6: Final answer
    x = 2,124.48

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