Home / 1,588.14-2,380.64-664.34

Finding the Fourth Proportional to 1,588.14, 2,380.64 and 664.34

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Solution

The fourth proportional to 1,588.14, 2,380.64 and 664.34 is: 995.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,588.14 : 2,380.64 = 664.34 : x
  2. Step 2: Convert to fraction form
    1,588.14/2,380.64 = 664.34/x
  3. Step 3: Cross multiply
    1,588.14x = 2,380.64 × 664.34
  4. Step 4: Simplify right side
    1,588.14x = 1,581,539.15
  5. Step 5: Solve for x
    x = 1,581,539.15/1,588.14
  6. Step 6: Final answer
    x = 995.84

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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.