Home / 5,821.68-8,031.24-3,727.92

Finding the Fourth Proportional to 5,821.68, 8,031.24 and 3,727.92

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Solution

The fourth proportional to 5,821.68, 8,031.24 and 3,727.92 is: 5,142.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,821.68 : 8,031.24 = 3,727.92 : x
  2. Step 2: Convert to fraction form
    5,821.68/8,031.24 = 3,727.92/x
  3. Step 3: Cross multiply
    5,821.68x = 8,031.24 × 3,727.92
  4. Step 4: Simplify right side
    5,821.68x = 29,939,820.22
  5. Step 5: Solve for x
    x = 29,939,820.22/5,821.68
  6. Step 6: Final answer
    x = 5,142.81

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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.