Home / 6,561.68-9,841.92-2,179.64

Finding the Fourth Proportional to 6,561.68, 9,841.92 and 2,179.64

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Solution

The fourth proportional to 6,561.68, 9,841.92 and 2,179.64 is: 3,269.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,561.68 : 9,841.92 = 2,179.64 : x
  2. Step 2: Convert to fraction form
    6,561.68/9,841.92 = 2,179.64/x
  3. Step 3: Cross multiply
    6,561.68x = 9,841.92 × 2,179.64
  4. Step 4: Simplify right side
    6,561.68x = 21,451,842.51
  5. Step 5: Solve for x
    x = 21,451,842.51/6,561.68
  6. Step 6: Final answer
    x = 3,269.26

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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.