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Finding the Fourth Proportional to 6,443.16, 8,893.23 and 3,926.97

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Solution

The fourth proportional to 6,443.16, 8,893.23 and 3,926.97 is: 5,420.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,443.16 : 8,893.23 = 3,926.97 : x
  2. Step 2: Convert to fraction form
    6,443.16/8,893.23 = 3,926.97/x
  3. Step 3: Cross multiply
    6,443.16x = 8,893.23 × 3,926.97
  4. Step 4: Simplify right side
    6,443.16x = 34,923,447.41
  5. Step 5: Solve for x
    x = 34,923,447.41/6,443.16
  6. Step 6: Final answer
    x = 5,420.24

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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.