Home / 4,921.29-6,789.69-2,796.59

Finding the Fourth Proportional to 4,921.29, 6,789.69 and 2,796.59

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Solution

The fourth proportional to 4,921.29, 6,789.69 and 2,796.59 is: 3,858.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,921.29 : 6,789.69 = 2,796.59 : x
  2. Step 2: Convert to fraction form
    4,921.29/6,789.69 = 2,796.59/x
  3. Step 3: Cross multiply
    4,921.29x = 6,789.69 × 2,796.59
  4. Step 4: Simplify right side
    4,921.29x = 18,987,996.13
  5. Step 5: Solve for x
    x = 18,987,996.13/4,921.29
  6. Step 6: Final answer
    x = 3,858.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.