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Finding the Fourth Proportional to 6,352.74, 8,766.66 and 3,998.88

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Solution

The fourth proportional to 6,352.74, 8,766.66 and 3,998.88 is: 5,518.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,352.74 : 8,766.66 = 3,998.88 : x
  2. Step 2: Convert to fraction form
    6,352.74/8,766.66 = 3,998.88/x
  3. Step 3: Cross multiply
    6,352.74x = 8,766.66 × 3,998.88
  4. Step 4: Simplify right side
    6,352.74x = 35,056,821.34
  5. Step 5: Solve for x
    x = 35,056,821.34/6,352.74
  6. Step 6: Final answer
    x = 5,518.38

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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.