Home / 5,311.59-7,961.38-2,674.91

Finding the Fourth Proportional to 5,311.59, 7,961.38 and 2,674.91

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Solution

The fourth proportional to 5,311.59, 7,961.38 and 2,674.91 is: 4,009.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,311.59 : 7,961.38 = 2,674.91 : x
  2. Step 2: Convert to fraction form
    5,311.59/7,961.38 = 2,674.91/x
  3. Step 3: Cross multiply
    5,311.59x = 7,961.38 × 2,674.91
  4. Step 4: Simplify right side
    5,311.59x = 21,295,921.79
  5. Step 5: Solve for x
    x = 21,295,921.79/5,311.59
  6. Step 6: Final answer
    x = 4,009.33

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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.