Home / 7,480.78-11,223.09-2,801.14

Finding the Fourth Proportional to 7,480.78, 11,223.09 and 2,801.14

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Solution

The fourth proportional to 7,480.78, 11,223.09 and 2,801.14 is: 4,202.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,480.78 : 11,223.09 = 2,801.14 : x
  2. Step 2: Convert to fraction form
    7,480.78/11,223.09 = 2,801.14/x
  3. Step 3: Cross multiply
    7,480.78x = 11,223.09 × 2,801.14
  4. Step 4: Simplify right side
    7,480.78x = 31,437,418.26
  5. Step 5: Solve for x
    x = 31,437,418.26/7,480.78
  6. Step 6: Final answer
    x = 4,202.43

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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.