Home / 7,719.47-11,578.32-2,173.26

Finding the Fourth Proportional to 7,719.47, 11,578.32 and 2,173.26

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Solution

The fourth proportional to 7,719.47, 11,578.32 and 2,173.26 is: 3,259.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,719.47 : 11,578.32 = 2,173.26 : x
  2. Step 2: Convert to fraction form
    7,719.47/11,578.32 = 2,173.26/x
  3. Step 3: Cross multiply
    7,719.47x = 11,578.32 × 2,173.26
  4. Step 4: Simplify right side
    7,719.47x = 25,162,699.72
  5. Step 5: Solve for x
    x = 25,162,699.72/7,719.47
  6. Step 6: Final answer
    x = 3,259.64

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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.