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Finding the Fourth Proportional to 3,535.76, 5,290.68 and 3,449.36

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Solution

The fourth proportional to 3,535.76, 5,290.68 and 3,449.36 is: 5,161.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,535.76 : 5,290.68 = 3,449.36 : x
  2. Step 2: Convert to fraction form
    3,535.76/5,290.68 = 3,449.36/x
  3. Step 3: Cross multiply
    3,535.76x = 5,290.68 × 3,449.36
  4. Step 4: Simplify right side
    3,535.76x = 18,249,459.96
  5. Step 5: Solve for x
    x = 18,249,459.96/3,535.76
  6. Step 6: Final answer
    x = 5,161.40

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