Home / 2,173.21-3,260.42-713.39

Finding the Fourth Proportional to 2,173.21, 3,260.42 and 713.39

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Solution

The fourth proportional to 2,173.21, 3,260.42 and 713.39 is: 1,070.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,173.21 : 3,260.42 = 713.39 : x
  2. Step 2: Convert to fraction form
    2,173.21/3,260.42 = 713.39/x
  3. Step 3: Cross multiply
    2,173.21x = 3,260.42 × 713.39
  4. Step 4: Simplify right side
    2,173.21x = 2,325,951.02
  5. Step 5: Solve for x
    x = 2,325,951.02/2,173.21
  6. Step 6: Final answer
    x = 1,070.28

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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.