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Finding the Fourth Proportional to 5,126.34, 7,689.15 and 2,928.18

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Solution

The fourth proportional to 5,126.34, 7,689.15 and 2,928.18 is: 4,392.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,126.34 : 7,689.15 = 2,928.18 : x
  2. Step 2: Convert to fraction form
    5,126.34/7,689.15 = 2,928.18/x
  3. Step 3: Cross multiply
    5,126.34x = 7,689.15 × 2,928.18
  4. Step 4: Simplify right side
    5,126.34x = 22,515,215.25
  5. Step 5: Solve for x
    x = 22,515,215.25/5,126.34
  6. Step 6: Final answer
    x = 4,392.06

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