Home / 5,712.19-8,571.12-3,859.24

Finding the Fourth Proportional to 5,712.19, 8,571.12 and 3,859.24

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Solution

The fourth proportional to 5,712.19, 8,571.12 and 3,859.24 is: 5,790.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,712.19 : 8,571.12 = 3,859.24 : x
  2. Step 2: Convert to fraction form
    5,712.19/8,571.12 = 3,859.24/x
  3. Step 3: Cross multiply
    5,712.19x = 8,571.12 × 3,859.24
  4. Step 4: Simplify right side
    5,712.19x = 33,078,009.15
  5. Step 5: Solve for x
    x = 33,078,009.15/5,712.19
  6. Step 6: Final answer
    x = 5,790.78

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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.