Home / 2,322.43-3,480.48-1,280.87

Finding the Fourth Proportional to 2,322.43, 3,480.48 and 1,280.87

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Solution

The fourth proportional to 2,322.43, 3,480.48 and 1,280.87 is: 1,919.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,322.43 : 3,480.48 = 1,280.87 : x
  2. Step 2: Convert to fraction form
    2,322.43/3,480.48 = 1,280.87/x
  3. Step 3: Cross multiply
    2,322.43x = 3,480.48 × 1,280.87
  4. Step 4: Simplify right side
    2,322.43x = 4,458,042.42
  5. Step 5: Solve for x
    x = 4,458,042.42/2,322.43
  6. Step 6: Final answer
    x = 1,919.56

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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.