Home / 7,388.80-11,081.04-2,770.72

Finding the Fourth Proportional to 7,388.80, 11,081.04 and 2,770.72

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Solution

The fourth proportional to 7,388.80, 11,081.04 and 2,770.72 is: 4,155.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,388.80 : 11,081.04 = 2,770.72 : x
  2. Step 2: Convert to fraction form
    7,388.80/11,081.04 = 2,770.72/x
  3. Step 3: Cross multiply
    7,388.80x = 11,081.04 × 2,770.72
  4. Step 4: Simplify right side
    7,388.80x = 30,702,459.15
  5. Step 5: Solve for x
    x = 30,702,459.15/7,388.80
  6. Step 6: Final answer
    x = 4,155.27

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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.