Home / 7,450.40-11,175.24-2,770.40

Finding the Fourth Proportional to 7,450.40, 11,175.24 and 2,770.40

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Solution

The fourth proportional to 7,450.40, 11,175.24 and 2,770.40 is: 4,155.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,450.40 : 11,175.24 = 2,770.40 : x
  2. Step 2: Convert to fraction form
    7,450.40/11,175.24 = 2,770.40/x
  3. Step 3: Cross multiply
    7,450.40x = 11,175.24 × 2,770.40
  4. Step 4: Simplify right side
    7,450.40x = 30,959,884.90
  5. Step 5: Solve for x
    x = 30,959,884.90/7,450.40
  6. Step 6: Final answer
    x = 4,155.47

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1.5x scale

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.