Home / 2,311.35-3,465.76-1,581.75

Finding the Fourth Proportional to 2,311.35, 3,465.76 and 1,581.75

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Solution

The fourth proportional to 2,311.35, 3,465.76 and 1,581.75 is: 2,371.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,311.35 : 3,465.76 = 1,581.75 : x
  2. Step 2: Convert to fraction form
    2,311.35/3,465.76 = 1,581.75/x
  3. Step 3: Cross multiply
    2,311.35x = 3,465.76 × 1,581.75
  4. Step 4: Simplify right side
    2,311.35x = 5,481,965.88
  5. Step 5: Solve for x
    x = 5,481,965.88/2,311.35
  6. Step 6: Final answer
    x = 2,371.76

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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.