Home / 7,412.85-11,119.23-2,972.52

Finding the Fourth Proportional to 7,412.85, 11,119.23 and 2,972.52

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Solution

The fourth proportional to 7,412.85, 11,119.23 and 2,972.52 is: 4,458.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,412.85 : 11,119.23 = 2,972.52 : x
  2. Step 2: Convert to fraction form
    7,412.85/11,119.23 = 2,972.52/x
  3. Step 3: Cross multiply
    7,412.85x = 11,119.23 × 2,972.52
  4. Step 4: Simplify right side
    7,412.85x = 33,052,133.56
  5. Step 5: Solve for x
    x = 33,052,133.56/7,412.85
  6. Step 6: Final answer
    x = 4,458.76

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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.