Home / 6,449.80-9,667.14-2,979.76

Finding the Fourth Proportional to 6,449.80, 9,667.14 and 2,979.76

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Solution

The fourth proportional to 6,449.80, 9,667.14 and 2,979.76 is: 4,466.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,449.80 : 9,667.14 = 2,979.76 : x
  2. Step 2: Convert to fraction form
    6,449.80/9,667.14 = 2,979.76/x
  3. Step 3: Cross multiply
    6,449.80x = 9,667.14 × 2,979.76
  4. Step 4: Simplify right side
    6,449.80x = 28,805,757.09
  5. Step 5: Solve for x
    x = 28,805,757.09/6,449.80
  6. Step 6: Final answer
    x = 4,466.15

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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.