Home / 7,419.72-11,135.21-2,744.15

Finding the Fourth Proportional to 7,419.72, 11,135.21 and 2,744.15

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Solution

The fourth proportional to 7,419.72, 11,135.21 and 2,744.15 is: 4,118.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,419.72 : 11,135.21 = 2,744.15 : x
  2. Step 2: Convert to fraction form
    7,419.72/11,135.21 = 2,744.15/x
  3. Step 3: Cross multiply
    7,419.72x = 11,135.21 × 2,744.15
  4. Step 4: Simplify right side
    7,419.72x = 30,556,686.52
  5. Step 5: Solve for x
    x = 30,556,686.52/7,419.72
  6. Step 6: Final answer
    x = 4,118.31

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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.