Home / 3,811.77-5,717.66-1,345.24

Finding the Fourth Proportional to 3,811.77, 5,717.66 and 1,345.24

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Solution

The fourth proportional to 3,811.77, 5,717.66 and 1,345.24 is: 2,017.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,811.77 : 5,717.66 = 1,345.24 : x
  2. Step 2: Convert to fraction form
    3,811.77/5,717.66 = 1,345.24/x
  3. Step 3: Cross multiply
    3,811.77x = 5,717.66 × 1,345.24
  4. Step 4: Simplify right side
    3,811.77x = 7,691,624.94
  5. Step 5: Solve for x
    x = 7,691,624.94/3,811.77
  6. Step 6: Final answer
    x = 2,017.86

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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.