Home / 7,415.40-11,119.05-3,027.90

Finding the Fourth Proportional to 7,415.40, 11,119.05 and 3,027.90

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Solution

The fourth proportional to 7,415.40, 11,119.05 and 3,027.90 is: 4,540.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,415.40 : 11,119.05 = 3,027.90 : x
  2. Step 2: Convert to fraction form
    7,415.40/11,119.05 = 3,027.90/x
  3. Step 3: Cross multiply
    7,415.40x = 11,119.05 × 3,027.90
  4. Step 4: Simplify right side
    7,415.40x = 33,667,371.50
  5. Step 5: Solve for x
    x = 33,667,371.50/7,415.40
  6. Step 6: Final answer
    x = 4,540.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.