Home / 2,311.62-3,190.01-1,263.68

Finding the Fourth Proportional to 2,311.62, 3,190.01 and 1,263.68

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Solution

The fourth proportional to 2,311.62, 3,190.01 and 1,263.68 is: 1,743.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,311.62 : 3,190.01 = 1,263.68 : x
  2. Step 2: Convert to fraction form
    2,311.62/3,190.01 = 1,263.68/x
  3. Step 3: Cross multiply
    2,311.62x = 3,190.01 × 1,263.68
  4. Step 4: Simplify right side
    2,311.62x = 4,031,151.84
  5. Step 5: Solve for x
    x = 4,031,151.84/2,311.62
  6. Step 6: Final answer
    x = 1,743.86

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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.