Home / 5,796.80-7,999.28-3,439.20

Finding the Fourth Proportional to 5,796.80, 7,999.28 and 3,439.20

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Solution

The fourth proportional to 5,796.80, 7,999.28 and 3,439.20 is: 4,745.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,796.80 : 7,999.28 = 3,439.20 : x
  2. Step 2: Convert to fraction form
    5,796.80/7,999.28 = 3,439.20/x
  3. Step 3: Cross multiply
    5,796.80x = 7,999.28 × 3,439.20
  4. Step 4: Simplify right side
    5,796.80x = 27,511,123.78
  5. Step 5: Solve for x
    x = 27,511,123.78/5,796.80
  6. Step 6: Final answer
    x = 4,745.92

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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.