Home / 2,311.76-3,190.26-1,263.82

Finding the Fourth Proportional to 2,311.76, 3,190.26 and 1,263.82

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Solution

The fourth proportional to 2,311.76, 3,190.26 and 1,263.82 is: 1,744.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,311.76 : 3,190.26 = 1,263.82 : x
  2. Step 2: Convert to fraction form
    2,311.76/3,190.26 = 1,263.82/x
  3. Step 3: Cross multiply
    2,311.76x = 3,190.26 × 1,263.82
  4. Step 4: Simplify right side
    2,311.76x = 4,031,914.39
  5. Step 5: Solve for x
    x = 4,031,914.39/2,311.76
  6. Step 6: Final answer
    x = 1,744.09

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Why These Related Problems?

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