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Finding the Fourth Proportional to 4,539.66, 6,812.12 and 1,906.96

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Solution

The fourth proportional to 4,539.66, 6,812.12 and 1,906.96 is: 2,861.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,539.66 : 6,812.12 = 1,906.96 : x
  2. Step 2: Convert to fraction form
    4,539.66/6,812.12 = 1,906.96/x
  3. Step 3: Cross multiply
    4,539.66x = 6,812.12 × 1,906.96
  4. Step 4: Simplify right side
    4,539.66x = 12,990,430.14
  5. Step 5: Solve for x
    x = 12,990,430.14/4,539.66
  6. Step 6: Final answer
    x = 2,861.54

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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.