Home / 1,345.03-2,020.62-1,289.74

Finding the Fourth Proportional to 1,345.03, 2,020.62 and 1,289.74

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Solution

The fourth proportional to 1,345.03, 2,020.62 and 1,289.74 is: 1,937.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,345.03 : 2,020.62 = 1,289.74 : x
  2. Step 2: Convert to fraction form
    1,345.03/2,020.62 = 1,289.74/x
  3. Step 3: Cross multiply
    1,345.03x = 2,020.62 × 1,289.74
  4. Step 4: Simplify right side
    1,345.03x = 2,606,074.44
  5. Step 5: Solve for x
    x = 2,606,074.44/1,345.03
  6. Step 6: Final answer
    x = 1,937.56

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