Home / 4,809.69-7,217.78-2,177.91

Finding the Fourth Proportional to 4,809.69, 7,217.78 and 2,177.91

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Solution

The fourth proportional to 4,809.69, 7,217.78 and 2,177.91 is: 3,268.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,809.69 : 7,217.78 = 2,177.91 : x
  2. Step 2: Convert to fraction form
    4,809.69/7,217.78 = 2,177.91/x
  3. Step 3: Cross multiply
    4,809.69x = 7,217.78 × 2,177.91
  4. Step 4: Simplify right side
    4,809.69x = 15,719,664.35
  5. Step 5: Solve for x
    x = 15,719,664.35/4,809.69
  6. Step 6: Final answer
    x = 3,268.33

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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.