Home / 3,858.57-5,784.43-1,392.85

Finding the Fourth Proportional to 3,858.57, 5,784.43 and 1,392.85

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Solution

The fourth proportional to 3,858.57, 5,784.43 and 1,392.85 is: 2,088.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,858.57 : 5,784.43 = 1,392.85 : x
  2. Step 2: Convert to fraction form
    3,858.57/5,784.43 = 1,392.85/x
  3. Step 3: Cross multiply
    3,858.57x = 5,784.43 × 1,392.85
  4. Step 4: Simplify right side
    3,858.57x = 8,056,811.27
  5. Step 5: Solve for x
    x = 8,056,811.27/3,858.57
  6. Step 6: Final answer
    x = 2,088.03

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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.