Home / 6,385.34-8,812.62-3,591.38

Finding the Fourth Proportional to 6,385.34, 8,812.62 and 3,591.38

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Solution

The fourth proportional to 6,385.34, 8,812.62 and 3,591.38 is: 4,956.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,385.34 : 8,812.62 = 3,591.38 : x
  2. Step 2: Convert to fraction form
    6,385.34/8,812.62 = 3,591.38/x
  3. Step 3: Cross multiply
    6,385.34x = 8,812.62 × 3,591.38
  4. Step 4: Simplify right side
    6,385.34x = 31,649,467.22
  5. Step 5: Solve for x
    x = 31,649,467.22/6,385.34
  6. Step 6: Final answer
    x = 4,956.58

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1.5x scale

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.