Home / 5,115.41-7,669.90-1,604.40

Finding the Fourth Proportional to 5,115.41, 7,669.90 and 1,604.40

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Solution

The fourth proportional to 5,115.41, 7,669.90 and 1,604.40 is: 2,405.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,115.41 : 7,669.90 = 1,604.40 : x
  2. Step 2: Convert to fraction form
    5,115.41/7,669.90 = 1,604.40/x
  3. Step 3: Cross multiply
    5,115.41x = 7,669.90 × 1,604.40
  4. Step 4: Simplify right side
    5,115.41x = 12,305,587.56
  5. Step 5: Solve for x
    x = 12,305,587.56/5,115.41
  6. Step 6: Final answer
    x = 2,405.59

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