Home / 2,180.37-3,269.34-719.13

Finding the Fourth Proportional to 2,180.37, 3,269.34 and 719.13

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Solution

The fourth proportional to 2,180.37, 3,269.34 and 719.13 is: 1,078.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,180.37 : 3,269.34 = 719.13 : x
  2. Step 2: Convert to fraction form
    2,180.37/3,269.34 = 719.13/x
  3. Step 3: Cross multiply
    2,180.37x = 3,269.34 × 719.13
  4. Step 4: Simplify right side
    2,180.37x = 2,351,080.47
  5. Step 5: Solve for x
    x = 2,351,080.47/2,180.37
  6. Step 6: Final answer
    x = 1,078.29

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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.