Home / 4,982.91-6,876.66-2,858.78

Finding the Fourth Proportional to 4,982.91, 6,876.66 and 2,858.78

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Solution

The fourth proportional to 4,982.91, 6,876.66 and 2,858.78 is: 3,945.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,982.91 : 6,876.66 = 2,858.78 : x
  2. Step 2: Convert to fraction form
    4,982.91/6,876.66 = 2,858.78/x
  3. Step 3: Cross multiply
    4,982.91x = 6,876.66 × 2,858.78
  4. Step 4: Simplify right side
    4,982.91x = 19,658,858.07
  5. Step 5: Solve for x
    x = 19,658,858.07/4,982.91
  6. Step 6: Final answer
    x = 3,945.26

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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.