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Finding the Fourth Proportional to 6,539.76, 9,811.08 and 2,157.03

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Solution

The fourth proportional to 6,539.76, 9,811.08 and 2,157.03 is: 3,236.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,539.76 : 9,811.08 = 2,157.03 : x
  2. Step 2: Convert to fraction form
    6,539.76/9,811.08 = 2,157.03/x
  3. Step 3: Cross multiply
    6,539.76x = 9,811.08 × 2,157.03
  4. Step 4: Simplify right side
    6,539.76x = 21,162,793.89
  5. Step 5: Solve for x
    x = 21,162,793.89/6,539.76
  6. Step 6: Final answer
    x = 3,236.02

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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.