Home / 5,372.20-8,051.10-3,831.40

Finding the Fourth Proportional to 5,372.20, 8,051.10 and 3,831.40

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Solution

The fourth proportional to 5,372.20, 8,051.10 and 3,831.40 is: 5,741.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,372.20 : 8,051.10 = 3,831.40 : x
  2. Step 2: Convert to fraction form
    5,372.20/8,051.10 = 3,831.40/x
  3. Step 3: Cross multiply
    5,372.20x = 8,051.10 × 3,831.40
  4. Step 4: Simplify right side
    5,372.20x = 30,846,984.54
  5. Step 5: Solve for x
    x = 30,846,984.54/5,372.20
  6. Step 6: Final answer
    x = 5,741.97

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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.