Home / 7,481.49-11,222.75-2,801.40

Finding the Fourth Proportional to 7,481.49, 11,222.75 and 2,801.40

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Solution

The fourth proportional to 7,481.49, 11,222.75 and 2,801.40 is: 4,202.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,481.49 : 11,222.75 = 2,801.40 : x
  2. Step 2: Convert to fraction form
    7,481.49/11,222.75 = 2,801.40/x
  3. Step 3: Cross multiply
    7,481.49x = 11,222.75 × 2,801.40
  4. Step 4: Simplify right side
    7,481.49x = 31,439,411.85
  5. Step 5: Solve for x
    x = 31,439,411.85/7,481.49
  6. Step 6: Final answer
    x = 4,202.29

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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.