Home / 4,919.82-6,789.36-2,681.66

Finding the Fourth Proportional to 4,919.82, 6,789.36 and 2,681.66

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Solution

The fourth proportional to 4,919.82, 6,789.36 and 2,681.66 is: 3,700.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,919.82 : 6,789.36 = 2,681.66 : x
  2. Step 2: Convert to fraction form
    4,919.82/6,789.36 = 2,681.66/x
  3. Step 3: Cross multiply
    4,919.82x = 6,789.36 × 2,681.66
  4. Step 4: Simplify right side
    4,919.82x = 18,206,721.19
  5. Step 5: Solve for x
    x = 18,206,721.19/4,919.82
  6. Step 6: Final answer
    x = 3,700.69

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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.