Home / 3,909.82-5,395.61-2,792.65

Finding the Fourth Proportional to 3,909.82, 5,395.61 and 2,792.65

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Solution

The fourth proportional to 3,909.82, 5,395.61 and 2,792.65 is: 3,853.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,909.82 : 5,395.61 = 2,792.65 : x
  2. Step 2: Convert to fraction form
    3,909.82/5,395.61 = 2,792.65/x
  3. Step 3: Cross multiply
    3,909.82x = 5,395.61 × 2,792.65
  4. Step 4: Simplify right side
    3,909.82x = 15,068,050.27
  5. Step 5: Solve for x
    x = 15,068,050.27/3,909.82
  6. Step 6: Final answer
    x = 3,853.90

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.