Home / 2,179.24-3,269.32-718.54

Finding the Fourth Proportional to 2,179.24, 3,269.32 and 718.54

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Solution

The fourth proportional to 2,179.24, 3,269.32 and 718.54 is: 1,077.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,179.24 : 3,269.32 = 718.54 : x
  2. Step 2: Convert to fraction form
    2,179.24/3,269.32 = 718.54/x
  3. Step 3: Cross multiply
    2,179.24x = 3,269.32 × 718.54
  4. Step 4: Simplify right side
    2,179.24x = 2,349,137.19
  5. Step 5: Solve for x
    x = 2,349,137.19/2,179.24
  6. Step 6: Final answer
    x = 1,077.96

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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.