Home / 5,781.21-7,977.27-3,229.00

Finding the Fourth Proportional to 5,781.21, 7,977.27 and 3,229.00

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Solution

The fourth proportional to 5,781.21, 7,977.27 and 3,229.00 is: 4,455.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,781.21 : 7,977.27 = 3,229.00 : x
  2. Step 2: Convert to fraction form
    5,781.21/7,977.27 = 3,229.00/x
  3. Step 3: Cross multiply
    5,781.21x = 7,977.27 × 3,229.00
  4. Step 4: Simplify right side
    5,781.21x = 25,758,602.69
  5. Step 5: Solve for x
    x = 25,758,602.69/5,781.21
  6. Step 6: Final answer
    x = 4,455.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.