Home / 5,630.96-8,439.86-4,239.82

Finding the Fourth Proportional to 5,630.96, 8,439.86 and 4,239.82

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Solution

The fourth proportional to 5,630.96, 8,439.86 and 4,239.82 is: 6,354.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,630.96 : 8,439.86 = 4,239.82 : x
  2. Step 2: Convert to fraction form
    5,630.96/8,439.86 = 4,239.82/x
  3. Step 3: Cross multiply
    5,630.96x = 8,439.86 × 4,239.82
  4. Step 4: Simplify right side
    5,630.96x = 35,783,487.23
  5. Step 5: Solve for x
    x = 35,783,487.23/5,630.96
  6. Step 6: Final answer
    x = 6,354.78

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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.