Home / 3,811.94-5,712.74-1,617.92

Finding the Fourth Proportional to 3,811.94, 5,712.74 and 1,617.92

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Solution

The fourth proportional to 3,811.94, 5,712.74 and 1,617.92 is: 2,424.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,811.94 : 5,712.74 = 1,617.92 : x
  2. Step 2: Convert to fraction form
    3,811.94/5,712.74 = 1,617.92/x
  3. Step 3: Cross multiply
    3,811.94x = 5,712.74 × 1,617.92
  4. Step 4: Simplify right side
    3,811.94x = 9,242,756.30
  5. Step 5: Solve for x
    x = 9,242,756.30/3,811.94
  6. Step 6: Final answer
    x = 2,424.69

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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.