Home / 5,640.55-8,462.19-3,977.92

Finding the Fourth Proportional to 5,640.55, 8,462.19 and 3,977.92

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Solution

The fourth proportional to 5,640.55, 8,462.19 and 3,977.92 is: 5,967.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,640.55 : 8,462.19 = 3,977.92 : x
  2. Step 2: Convert to fraction form
    5,640.55/8,462.19 = 3,977.92/x
  3. Step 3: Cross multiply
    5,640.55x = 8,462.19 × 3,977.92
  4. Step 4: Simplify right side
    5,640.55x = 33,661,872.53
  5. Step 5: Solve for x
    x = 33,661,872.53/5,640.55
  6. Step 6: Final answer
    x = 5,967.84

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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.