Home / 3,785.88-5,677.38-1,811.16

Finding the Fourth Proportional to 3,785.88, 5,677.38 and 1,811.16

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Solution

The fourth proportional to 3,785.88, 5,677.38 and 1,811.16 is: 2,716.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,785.88 : 5,677.38 = 1,811.16 : x
  2. Step 2: Convert to fraction form
    3,785.88/5,677.38 = 1,811.16/x
  3. Step 3: Cross multiply
    3,785.88x = 5,677.38 × 1,811.16
  4. Step 4: Simplify right side
    3,785.88x = 10,282,643.56
  5. Step 5: Solve for x
    x = 10,282,643.56/3,785.88
  6. Step 6: Final answer
    x = 2,716.05

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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.