Home / 3,390.50-4,679.30-1,993.25

Finding the Fourth Proportional to 3,390.50, 4,679.30 and 1,993.25

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Solution

The fourth proportional to 3,390.50, 4,679.30 and 1,993.25 is: 2,750.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,390.50 : 4,679.30 = 1,993.25 : x
  2. Step 2: Convert to fraction form
    3,390.50/4,679.30 = 1,993.25/x
  3. Step 3: Cross multiply
    3,390.50x = 4,679.30 × 1,993.25
  4. Step 4: Simplify right side
    3,390.50x = 9,327,014.73
  5. Step 5: Solve for x
    x = 9,327,014.73/3,390.50
  6. Step 6: Final answer
    x = 2,750.93

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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.