Home / 7,720.22-11,579.45-2,174.01

Finding the Fourth Proportional to 7,720.22, 11,579.45 and 2,174.01

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Solution

The fourth proportional to 7,720.22, 11,579.45 and 2,174.01 is: 3,260.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,720.22 : 11,579.45 = 2,174.01 : x
  2. Step 2: Convert to fraction form
    7,720.22/11,579.45 = 2,174.01/x
  3. Step 3: Cross multiply
    7,720.22x = 11,579.45 × 2,174.01
  4. Step 4: Simplify right side
    7,720.22x = 25,173,829.22
  5. Step 5: Solve for x
    x = 25,173,829.22/7,720.22
  6. Step 6: Final answer
    x = 3,260.77

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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.