Home / 7,420.89-11,126.07-3,469.97

Finding the Fourth Proportional to 7,420.89, 11,126.07 and 3,469.97

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Solution

The fourth proportional to 7,420.89, 11,126.07 and 3,469.97 is: 5,202.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,420.89 : 11,126.07 = 3,469.97 : x
  2. Step 2: Convert to fraction form
    7,420.89/11,126.07 = 3,469.97/x
  3. Step 3: Cross multiply
    7,420.89x = 11,126.07 × 3,469.97
  4. Step 4: Simplify right side
    7,420.89x = 38,607,129.12
  5. Step 5: Solve for x
    x = 38,607,129.12/7,420.89
  6. Step 6: Final answer
    x = 5,202.49

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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.