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Finding the Fourth Proportional to 6,373.89, 8,795.79 and 3,855.60

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Solution

The fourth proportional to 6,373.89, 8,795.79 and 3,855.60 is: 5,320.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,373.89 : 8,795.79 = 3,855.60 : x
  2. Step 2: Convert to fraction form
    6,373.89/8,795.79 = 3,855.60/x
  3. Step 3: Cross multiply
    6,373.89x = 8,795.79 × 3,855.60
  4. Step 4: Simplify right side
    6,373.89x = 33,913,047.92
  5. Step 5: Solve for x
    x = 33,913,047.92/6,373.89
  6. Step 6: Final answer
    x = 5,320.62

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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.