Home / 7,425.14-11,140.60-2,808.50

Finding the Fourth Proportional to 7,425.14, 11,140.60 and 2,808.50

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Solution

The fourth proportional to 7,425.14, 11,140.60 and 2,808.50 is: 4,213.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,425.14 : 11,140.60 = 2,808.50 : x
  2. Step 2: Convert to fraction form
    7,425.14/11,140.60 = 2,808.50/x
  3. Step 3: Cross multiply
    7,425.14x = 11,140.60 × 2,808.50
  4. Step 4: Simplify right side
    7,425.14x = 31,288,375.10
  5. Step 5: Solve for x
    x = 31,288,375.10/7,425.14
  6. Step 6: Final answer
    x = 4,213.84

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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.