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Finding the Fourth Proportional to 6,423.93, 8,865.09 and 3,772.19

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Solution

The fourth proportional to 6,423.93, 8,865.09 and 3,772.19 is: 5,205.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,423.93 : 8,865.09 = 3,772.19 : x
  2. Step 2: Convert to fraction form
    6,423.93/8,865.09 = 3,772.19/x
  3. Step 3: Cross multiply
    6,423.93x = 8,865.09 × 3,772.19
  4. Step 4: Simplify right side
    6,423.93x = 33,440,759.52
  5. Step 5: Solve for x
    x = 33,440,759.52/6,423.93
  6. Step 6: Final answer
    x = 5,205.65

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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.