Home / 3,588.40-5,380.97-1,279.96

Finding the Fourth Proportional to 3,588.40, 5,380.97 and 1,279.96

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Solution

The fourth proportional to 3,588.40, 5,380.97 and 1,279.96 is: 1,919.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,588.40 : 5,380.97 = 1,279.96 : x
  2. Step 2: Convert to fraction form
    3,588.40/5,380.97 = 1,279.96/x
  3. Step 3: Cross multiply
    3,588.40x = 5,380.97 × 1,279.96
  4. Step 4: Simplify right side
    3,588.40x = 6,887,426.36
  5. Step 5: Solve for x
    x = 6,887,426.36/3,588.40
  6. Step 6: Final answer
    x = 1,919.36

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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.