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Finding the Fourth Proportional to 1,689.31, 2,534.37 and 593.38

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Solution

The fourth proportional to 1,689.31, 2,534.37 and 593.38 is: 890.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,689.31 : 2,534.37 = 593.38 : x
  2. Step 2: Convert to fraction form
    1,689.31/2,534.37 = 593.38/x
  3. Step 3: Cross multiply
    1,689.31x = 2,534.37 × 593.38
  4. Step 4: Simplify right side
    1,689.31x = 1,503,844.47
  5. Step 5: Solve for x
    x = 1,503,844.47/1,689.31
  6. Step 6: Final answer
    x = 890.21

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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.