Home / 7,720.74-11,581.11-2,174.04

Finding the Fourth Proportional to 7,720.74, 11,581.11 and 2,174.04

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Solution

The fourth proportional to 7,720.74, 11,581.11 and 2,174.04 is: 3,261.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,720.74 : 11,581.11 = 2,174.04 : x
  2. Step 2: Convert to fraction form
    7,720.74/11,581.11 = 2,174.04/x
  3. Step 3: Cross multiply
    7,720.74x = 11,581.11 × 2,174.04
  4. Step 4: Simplify right side
    7,720.74x = 25,177,796.38
  5. Step 5: Solve for x
    x = 25,177,796.38/7,720.74
  6. Step 6: Final answer
    x = 3,261.06

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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.