Home / 1,588.37-2,381.26-664.61

Finding the Fourth Proportional to 1,588.37, 2,381.26 and 664.61

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Solution

The fourth proportional to 1,588.37, 2,381.26 and 664.61 is: 996.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,588.37 : 2,381.26 = 664.61 : x
  2. Step 2: Convert to fraction form
    1,588.37/2,381.26 = 664.61/x
  3. Step 3: Cross multiply
    1,588.37x = 2,381.26 × 664.61
  4. Step 4: Simplify right side
    1,588.37x = 1,582,609.21
  5. Step 5: Solve for x
    x = 1,582,609.21/1,588.37
  6. Step 6: Final answer
    x = 996.37

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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.