Home / 4,427.64-6,638.40-1,961.12

Finding the Fourth Proportional to 4,427.64, 6,638.40 and 1,961.12

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Solution

The fourth proportional to 4,427.64, 6,638.40 and 1,961.12 is: 2,940.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,427.64 : 6,638.40 = 1,961.12 : x
  2. Step 2: Convert to fraction form
    4,427.64/6,638.40 = 1,961.12/x
  3. Step 3: Cross multiply
    4,427.64x = 6,638.40 × 1,961.12
  4. Step 4: Simplify right side
    4,427.64x = 13,018,699.01
  5. Step 5: Solve for x
    x = 13,018,699.01/4,427.64
  6. Step 6: Final answer
    x = 2,940.32

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