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Finding the Fourth Proportional to 1,971.37, 2,956.65 and 930.93

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Solution

The fourth proportional to 1,971.37, 2,956.65 and 930.93 is: 1,396.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,971.37 : 2,956.65 = 930.93 : x
  2. Step 2: Convert to fraction form
    1,971.37/2,956.65 = 930.93/x
  3. Step 3: Cross multiply
    1,971.37x = 2,956.65 × 930.93
  4. Step 4: Simplify right side
    1,971.37x = 2,752,434.18
  5. Step 5: Solve for x
    x = 2,752,434.18/1,971.37
  6. Step 6: Final answer
    x = 1,396.20

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