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Finding the Fourth Proportional to 6,561.54, 9,842.58 and 2,179.44

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Solution

The fourth proportional to 6,561.54, 9,842.58 and 2,179.44 is: 3,269.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,561.54 : 9,842.58 = 2,179.44 : x
  2. Step 2: Convert to fraction form
    6,561.54/9,842.58 = 2,179.44/x
  3. Step 3: Cross multiply
    6,561.54x = 9,842.58 × 2,179.44
  4. Step 4: Simplify right side
    6,561.54x = 21,451,312.56
  5. Step 5: Solve for x
    x = 21,451,312.56/6,561.54
  6. Step 6: Final answer
    x = 3,269.25

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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.