Home / 3,362.13-5,039.64-1,280.79

Finding the Fourth Proportional to 3,362.13, 5,039.64 and 1,280.79

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Solution

The fourth proportional to 3,362.13, 5,039.64 and 1,280.79 is: 1,919.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,362.13 : 5,039.64 = 1,280.79 : x
  2. Step 2: Convert to fraction form
    3,362.13/5,039.64 = 1,280.79/x
  3. Step 3: Cross multiply
    3,362.13x = 5,039.64 × 1,280.79
  4. Step 4: Simplify right side
    3,362.13x = 6,454,720.52
  5. Step 5: Solve for x
    x = 6,454,720.52/3,362.13
  6. Step 6: Final answer
    x = 1,919.83

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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.