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Finding the Fourth Proportional to 1,588.53, 2,381.14 and 664.62

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Solution

The fourth proportional to 1,588.53, 2,381.14 and 664.62 is: 996.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,588.53 : 2,381.14 = 664.62 : x
  2. Step 2: Convert to fraction form
    1,588.53/2,381.14 = 664.62/x
  3. Step 3: Cross multiply
    1,588.53x = 2,381.14 × 664.62
  4. Step 4: Simplify right side
    1,588.53x = 1,582,553.27
  5. Step 5: Solve for x
    x = 1,582,553.27/1,588.53
  6. Step 6: Final answer
    x = 996.24

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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.