Home / 7,411.58-11,121.80-2,667.36

Finding the Fourth Proportional to 7,411.58, 11,121.80 and 2,667.36

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Solution

The fourth proportional to 7,411.58, 11,121.80 and 2,667.36 is: 4,002.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,411.58 : 11,121.80 = 2,667.36 : x
  2. Step 2: Convert to fraction form
    7,411.58/11,121.80 = 2,667.36/x
  3. Step 3: Cross multiply
    7,411.58x = 11,121.80 × 2,667.36
  4. Step 4: Simplify right side
    7,411.58x = 29,665,844.45
  5. Step 5: Solve for x
    x = 29,665,844.45/7,411.58
  6. Step 6: Final answer
    x = 4,002.63

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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.