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Finding the Fourth Proportional to 1,591.37, 2,383.84 and 897

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Solution

The fourth proportional to 1,591.37, 2,383.84 and 897 is: 1,343.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,591.37 : 2,383.84 = 897 : x
  2. Step 2: Convert to fraction form
    1,591.37/2,383.84 = 897/x
  3. Step 3: Cross multiply
    1,591.37x = 2,383.84 × 897
  4. Step 4: Simplify right side
    1,591.37x = 2,138,304.48
  5. Step 5: Solve for x
    x = 2,138,304.48/1,591.37
  6. Step 6: Final answer
    x = 1,343.69

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.