Home / 5,742.85-8,615.09-2,821.27

Finding the Fourth Proportional to 5,742.85, 8,615.09 and 2,821.27

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Solution

The fourth proportional to 5,742.85, 8,615.09 and 2,821.27 is: 4,232.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,742.85 : 8,615.09 = 2,821.27 : x
  2. Step 2: Convert to fraction form
    5,742.85/8,615.09 = 2,821.27/x
  3. Step 3: Cross multiply
    5,742.85x = 8,615.09 × 2,821.27
  4. Step 4: Simplify right side
    5,742.85x = 24,305,480.86
  5. Step 5: Solve for x
    x = 24,305,480.86/5,742.85
  6. Step 6: Final answer
    x = 4,232.30

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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.