Home / 3,926.25-5,418.19-2,248.20

Finding the Fourth Proportional to 3,926.25, 5,418.19 and 2,248.20

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Solution

The fourth proportional to 3,926.25, 5,418.19 and 2,248.20 is: 3,102.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,926.25 : 5,418.19 = 2,248.20 : x
  2. Step 2: Convert to fraction form
    3,926.25/5,418.19 = 2,248.20/x
  3. Step 3: Cross multiply
    3,926.25x = 5,418.19 × 2,248.20
  4. Step 4: Simplify right side
    3,926.25x = 12,181,174.76
  5. Step 5: Solve for x
    x = 12,181,174.76/3,926.25
  6. Step 6: Final answer
    x = 3,102.50

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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.