Home / 7,731.86-11,598.42-2,185.25

Finding the Fourth Proportional to 7,731.86, 11,598.42 and 2,185.25

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Solution

The fourth proportional to 7,731.86, 11,598.42 and 2,185.25 is: 3,278.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,731.86 : 11,598.42 = 2,185.25 : x
  2. Step 2: Convert to fraction form
    7,731.86/11,598.42 = 2,185.25/x
  3. Step 3: Cross multiply
    7,731.86x = 11,598.42 × 2,185.25
  4. Step 4: Simplify right side
    7,731.86x = 25,345,476.30
  5. Step 5: Solve for x
    x = 25,345,476.30/7,731.86
  6. Step 6: Final answer
    x = 3,278.06

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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.