Home / 5,215.30-7,818.20-1,927.56

Finding the Fourth Proportional to 5,215.30, 7,818.20 and 1,927.56

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Solution

The fourth proportional to 5,215.30, 7,818.20 and 1,927.56 is: 2,889.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,215.30 : 7,818.20 = 1,927.56 : x
  2. Step 2: Convert to fraction form
    5,215.30/7,818.20 = 1,927.56/x
  3. Step 3: Cross multiply
    5,215.30x = 7,818.20 × 1,927.56
  4. Step 4: Simplify right side
    5,215.30x = 15,070,049.59
  5. Step 5: Solve for x
    x = 15,070,049.59/5,215.30
  6. Step 6: Final answer
    x = 2,889.58

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