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Finding the Fourth Proportional to 6,657.89, 9,983.73 and 3,885.35

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Solution

The fourth proportional to 6,657.89, 9,983.73 and 3,885.35 is: 5,826.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,657.89 : 9,983.73 = 3,885.35 : x
  2. Step 2: Convert to fraction form
    6,657.89/9,983.73 = 3,885.35/x
  3. Step 3: Cross multiply
    6,657.89x = 9,983.73 × 3,885.35
  4. Step 4: Simplify right side
    6,657.89x = 38,790,235.44
  5. Step 5: Solve for x
    x = 38,790,235.44/6,657.89
  6. Step 6: Final answer
    x = 5,826.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.