Home / 3,815.93-5,716.71-2,991.70

Finding the Fourth Proportional to 3,815.93, 5,716.71 and 2,991.70

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Solution

The fourth proportional to 3,815.93, 5,716.71 and 2,991.70 is: 4,481.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,815.93 : 5,716.71 = 2,991.70 : x
  2. Step 2: Convert to fraction form
    3,815.93/5,716.71 = 2,991.70/x
  3. Step 3: Cross multiply
    3,815.93x = 5,716.71 × 2,991.70
  4. Step 4: Simplify right side
    3,815.93x = 17,102,667.02
  5. Step 5: Solve for x
    x = 17,102,667.02/3,815.93
  6. Step 6: Final answer
    x = 4,481.92

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1.5x scale

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.