Home / 5,786.12-8,677.38-2,087.87

Finding the Fourth Proportional to 5,786.12, 8,677.38 and 2,087.87

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Solution

The fourth proportional to 5,786.12, 8,677.38 and 2,087.87 is: 3,131.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,786.12 : 8,677.38 = 2,087.87 : x
  2. Step 2: Convert to fraction form
    5,786.12/8,677.38 = 2,087.87/x
  3. Step 3: Cross multiply
    5,786.12x = 8,677.38 × 2,087.87
  4. Step 4: Simplify right side
    5,786.12x = 18,117,268.29
  5. Step 5: Solve for x
    x = 18,117,268.29/5,786.12
  6. Step 6: Final answer
    x = 3,131.16

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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.