Home / 7,415.85-11,120.09-2,483.87

Finding the Fourth Proportional to 7,415.85, 11,120.09 and 2,483.87

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Solution

The fourth proportional to 7,415.85, 11,120.09 and 2,483.87 is: 3,724.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,415.85 : 11,120.09 = 2,483.87 : x
  2. Step 2: Convert to fraction form
    7,415.85/11,120.09 = 2,483.87/x
  3. Step 3: Cross multiply
    7,415.85x = 11,120.09 × 2,483.87
  4. Step 4: Simplify right side
    7,415.85x = 27,620,789.93
  5. Step 5: Solve for x
    x = 27,620,789.93/7,415.85
  6. Step 6: Final answer
    x = 3,724.56

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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.