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Finding the Fourth Proportional to 1,397.05, 2,096.49 and 531.37

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Solution

The fourth proportional to 1,397.05, 2,096.49 and 531.37 is: 797.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,397.05 : 2,096.49 = 531.37 : x
  2. Step 2: Convert to fraction form
    1,397.05/2,096.49 = 531.37/x
  3. Step 3: Cross multiply
    1,397.05x = 2,096.49 × 531.37
  4. Step 4: Simplify right side
    1,397.05x = 1,114,011.89
  5. Step 5: Solve for x
    x = 1,114,011.89/1,397.05
  6. Step 6: Final answer
    x = 797.40

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