Home / 7,411.34-11,121.37-2,734.64

Finding the Fourth Proportional to 7,411.34, 11,121.37 and 2,734.64

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Solution

The fourth proportional to 7,411.34, 11,121.37 and 2,734.64 is: 4,103.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,411.34 : 11,121.37 = 2,734.64 : x
  2. Step 2: Convert to fraction form
    7,411.34/11,121.37 = 2,734.64/x
  3. Step 3: Cross multiply
    7,411.34x = 11,121.37 × 2,734.64
  4. Step 4: Simplify right side
    7,411.34x = 30,412,943.26
  5. Step 5: Solve for x
    x = 30,412,943.26/7,411.34
  6. Step 6: Final answer
    x = 4,103.57

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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.