Home / 7,411.21-11,121.18-2,734.51

Finding the Fourth Proportional to 7,411.21, 11,121.18 and 2,734.51

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Solution

The fourth proportional to 7,411.21, 11,121.18 and 2,734.51 is: 4,103.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,411.21 : 11,121.18 = 2,734.51 : x
  2. Step 2: Convert to fraction form
    7,411.21/11,121.18 = 2,734.51/x
  3. Step 3: Cross multiply
    7,411.21x = 11,121.18 × 2,734.51
  4. Step 4: Simplify right side
    7,411.21x = 30,410,977.92
  5. Step 5: Solve for x
    x = 30,410,977.92/7,411.21
  6. Step 6: Final answer
    x = 4,103.38

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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.