Home / 3,320.75-4,979.27-1,539.86

Finding the Fourth Proportional to 3,320.75, 4,979.27 and 1,539.86

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Solution

The fourth proportional to 3,320.75, 4,979.27 and 1,539.86 is: 2,308.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,320.75 : 4,979.27 = 1,539.86 : x
  2. Step 2: Convert to fraction form
    3,320.75/4,979.27 = 1,539.86/x
  3. Step 3: Cross multiply
    3,320.75x = 4,979.27 × 1,539.86
  4. Step 4: Simplify right side
    3,320.75x = 7,667,378.70
  5. Step 5: Solve for x
    x = 7,667,378.70/3,320.75
  6. Step 6: Final answer
    x = 2,308.93

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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.