Home / 5,092.78-7,028.08-2,854.66

Finding the Fourth Proportional to 5,092.78, 7,028.08 and 2,854.66

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Solution

The fourth proportional to 5,092.78, 7,028.08 and 2,854.66 is: 3,939.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,092.78 : 7,028.08 = 2,854.66 : x
  2. Step 2: Convert to fraction form
    5,092.78/7,028.08 = 2,854.66/x
  3. Step 3: Cross multiply
    5,092.78x = 7,028.08 × 2,854.66
  4. Step 4: Simplify right side
    5,092.78x = 20,062,778.85
  5. Step 5: Solve for x
    x = 20,062,778.85/5,092.78
  6. Step 6: Final answer
    x = 3,939.46

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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.