Home / 7,719.72-11,578.69-2,173.51

Finding the Fourth Proportional to 7,719.72, 11,578.69 and 2,173.51

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Solution

The fourth proportional to 7,719.72, 11,578.69 and 2,173.51 is: 3,260.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,719.72 : 11,578.69 = 2,173.51 : x
  2. Step 2: Convert to fraction form
    7,719.72/11,578.69 = 2,173.51/x
  3. Step 3: Cross multiply
    7,719.72x = 11,578.69 × 2,173.51
  4. Step 4: Simplify right side
    7,719.72x = 25,166,398.50
  5. Step 5: Solve for x
    x = 25,166,398.50/7,719.72
  6. Step 6: Final answer
    x = 3,260.01

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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.