Home / 7,390.80-11,084.04-2,772.72

Finding the Fourth Proportional to 7,390.80, 11,084.04 and 2,772.72

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Solution

The fourth proportional to 7,390.80, 11,084.04 and 2,772.72 is: 4,158.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,390.80 : 11,084.04 = 2,772.72 : x
  2. Step 2: Convert to fraction form
    7,390.80/11,084.04 = 2,772.72/x
  3. Step 3: Cross multiply
    7,390.80x = 11,084.04 × 2,772.72
  4. Step 4: Simplify right side
    7,390.80x = 30,732,939.39
  5. Step 5: Solve for x
    x = 30,732,939.39/7,390.80
  6. Step 6: Final answer
    x = 4,158.27

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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.