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Finding the Fourth Proportional to 6,373.91, 8,795.39 and 3,720.80

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Solution

The fourth proportional to 6,373.91, 8,795.39 and 3,720.80 is: 5,134.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,373.91 : 8,795.39 = 3,720.80 : x
  2. Step 2: Convert to fraction form
    6,373.91/8,795.39 = 3,720.80/x
  3. Step 3: Cross multiply
    6,373.91x = 8,795.39 × 3,720.80
  4. Step 4: Simplify right side
    6,373.91x = 32,725,890.50
  5. Step 5: Solve for x
    x = 32,725,890.50/6,373.91
  6. Step 6: Final answer
    x = 5,134.35

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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.