Home / 7,412.80-11,120.03-2,482.78

Finding the Fourth Proportional to 7,412.80, 11,120.03 and 2,482.78

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Solution

The fourth proportional to 7,412.80, 11,120.03 and 2,482.78 is: 3,724.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,412.80 : 11,120.03 = 2,482.78 : x
  2. Step 2: Convert to fraction form
    7,412.80/11,120.03 = 2,482.78/x
  3. Step 3: Cross multiply
    7,412.80x = 11,120.03 × 2,482.78
  4. Step 4: Simplify right side
    7,412.80x = 27,608,520.07
  5. Step 5: Solve for x
    x = 27,608,520.07/7,412.80
  6. Step 6: Final answer
    x = 3,724.44

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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.